User manual spelling fixes and tidy-up

Signed-off-by: Sergey Starosek <sergey.starosek@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 46 insertions, 45 deletions

diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index 1ac4d5fd5..9c2763540 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -1,4 +1,4 @@
-// Subsurface 4.5 User Manual
+// Subsurface 4.5 User Manual
 // ==========================
 // :author: Manual authors: Jacco van Koll, Dirk Hohndel, Reinout Hoornweg,
 // Linus Torvalds, Miika Turkia, Amit Chaudhuri, Jan Schubert, Willem
@@ -392,8 +392,8 @@ of the dive computer (at least for those not charging while connected via USB).
    After the dives have been downloaded, they appear in a tabular format on the righthand
    side of the dialogue (see image *B*, above). Each dive comprises a row in the table, with the date, duration
    and depth shown. Next to each dive is a checkbox: check all the dives that need to
-   be transfered to the *Dive List*. In the case of the image above, the last six dives are
-   checked and will be transfered to the *Dive List*. Then
+   be transferred to the *Dive List*. In the case of the image above, the last six dives are
+   checked and will be transferred to the *Dive List*. Then
    click the _OK_ button at the bottom of the dialogue. All the imported dives appear
    in the *Dive List*, sorted by date and time. Disconnect and
    switch off the dive
@@ -402,7 +402,7 @@ of the dive computer (at least for those not charging while connected via USB).
 
 
 After this has been completed, select the OK button.
-The checked dives are transfered to the *Dive List*.
+The checked dives are transferred to the *Dive List*.
 
  - If there is a problem in communicating with the dive computer, an error
    message will be shown, similar to this text: "Unable to open /dev/ttyUSB0 Mares
@@ -512,7 +512,7 @@ the _Clear_ button and then scan again for Bluetooth devices using the _Scan_
 button. After performing these actions _Subsurface_ should see the dive computer.
 The label of the discovered dive computer contains the name of the device, its
 address and its pairing status. If the device is not paired and has a red
-background color, a context menu can be opened by selecting the item with a
+background colour, a context menu can be opened by selecting the item with a
 right-click.
 Select the the _Pair_ option and wait for the task to complete.
 
@@ -521,7 +521,7 @@ Select the the _Pair_ option and wait for the task to complete.
 [IMPORTANT]
 Currently _Subsurface_ does not support Bluetooth pairing with dive
 computers that require a custom PIN code. In order to pair the devices, use other
-OS utility\ies as suggested below.
+OS utilities as suggested below.
 
 One way to achieve this is to use +bluetoothctl+:
 
@@ -615,7 +615,7 @@ below is virtually identical for hand-entered dives and for dives downloaded fro
 
 In some cases,
 one has to provide the date and time of the dive, e.g. when entering a dive by hand or when a
-dive computer does not privide the date and time of the dive.
+dive computer does not provide the date and time of the dive.
 (Usually the date and time of the dive, gas mixture and water temperature are
 shown as obtained from the dive computer)
 If the contents of the *Notes tab* is changed or edited in any way, the message in a blue box at
@@ -646,12 +646,12 @@ be used).
 
 *Location*: Here the name of the dive site can be entered, e.g. "Tihany, Lake
 Balaton, Hungary". Dive locations are managed as a separate part of the dive log.
-After entering the information for a particilar dive site, and several dives are
+After entering the information for a particular dive site, and several dives are
 performed at the same location, the information is re-used without requiring
 full dive site information again. Existing dive location information
 can be edited at any time by selecting (on the *Dive List* panel) a dive performed at that site
 and by opening the location information by clicking the globe button on the
-right of the location name (see image on the righ, above). When entering a dive location name, auto location of
+right of the location name (see image on the right, above). When entering a dive location name, auto location of
 dive site names makes it easy to select a dive site that already exists in the dive log
 (i.e. when typing the name of a dive site,
 a dropdown list appears showing all sites with similar names). If the dive
@@ -1327,7 +1327,7 @@ After a dive trip using the Companion App, all dive locations are ready to be
 downloaded to a _Subsurface_ dive log (see below).
 
 
-===== Settings on the Companion app
+===== Settings on the Companion App
 
 Selecting the _Settings_ menu option results in the right hand image above (*B*).
 
@@ -1341,7 +1341,7 @@ Selecting the _Settings_ menu option results in the right hand image above (*B*)
 
 ===== Synchronisation
 
-- _Synchronize on startup._ If selected, dive locations in the Android device and those
+- _Synchronize on startup_. If selected, dive locations in the Android device and those
   on the web service synchronise each time the app is started.
 
 - _Upload new dives._ If selected, each time the user adds a dive location it is
@@ -1623,7 +1623,7 @@ When a photo is loaded into _Subsurface_, a fingerprint for the image is calcula
 This is achieved by selecting from the Main Menu: _File ->      Find moved images_. This brings up a window within
  which the NEW directory of the photos needs to be specified. Select the appropriate directory and click
  the _Scan_ button towards the bottom right of the panel. The process may require several minutes to
- complete, after which _subsurface_ will show the appropriate photographs when a particular dive is opened.
+ complete, after which _Subsurface_ will show the appropriate photographs when a particular dive is opened.
 
 
 [[Image_fingerprint_upgrade]]
@@ -1632,12 +1632,12 @@ This is achieved by selecting from the Main Menu: _File ->      Find moved image
 [icon="images/icons/important.png"]
 [IMPORTANT]
 
-Software for the automated finger print calculation of existing photo collections is under developement. Currently single
+Software for the automated finger print calculation of existing photo collections is under development. Currently single
 dives must be upgraded one at a time. Select the toolbar button on the *Dive profile* panel that enables
 the display of images. The thumbnails of images are shown on the dive profile. Then open the dive and
 change anything in the *Notes* panel that brings up the blue edit bar at the top of the notes panel
 to save the edits. For instance, add a space character at the end of the _Notes_ text box and immediately
-delete that space character. Select the optio _Apply changes_ in the blue edit bar to save the dive information.
+delete that space character. Select the option _Apply changes_ in the blue edit bar to save the dive information.
 Fingerprints are calculated while saving this specific dive.
 
 ****
@@ -2083,7 +2083,7 @@ The black line, graphed above the ambient pressure, is the maximum allowable tis
 from the gradient factors specified in the *Preferences*. For
 divers involved in planned decompression diving, efficient rates of offgasing are obtained with tissue pressures
 between the ambient inert gas pressure (grey line) and the pressure limit (black line). This display is a representation
-of the tissue pressures during the whole dive. In contast, the xref:S_gas_pressure_graph[Gas Pressure Graph] in the *Information Box* on the *Dive Profile*
+of the tissue pressures during the whole dive. In contrast, the xref:S_gas_pressure_graph[Gas Pressure Graph] in the *Information Box* on the *Dive Profile*
 is an instantaneous reflection of tissue pressures at the moment in time reflected by the position of the cursor on the dive profile.
 
 image::images/tissuesGraph.jpg["Figure: Inert gas tissue pressure graph",align="center"]
@@ -2192,11 +2192,11 @@ values are dependent on the composition of the breathing gas.  The EAD
 is the depth of a hypothetical air dive that has the same partial
 pressure of nitrogen as the current depth of the nitrox dive at
 hand. A nitrox dive leads to the same decompression obligation as an
-air dive to the depth equaling the EAD. The END is the depth of a
+air dive to the depth equalling the EAD. The END is the depth of a
 hypothetical air dive that has the same sum of partial pressures of
 the narcotic gases nitrogen and oxygen as the current trimix dive. A
 trimix diver can expect the same narcotic effect as a diver breathing
-air diving at a depth equaling the END.
+air diving at a depth equalling the END.
 
 Figure (*B*) above shows an information box with a nearly complete set of data.
 
@@ -2228,7 +2228,7 @@ image::images/GasPressureBarGraph.jpg["FIGURE:Gas Pressure bar Graph",align="cen
 
 - The top black horizontal line indicates the gradient factor that applies to the depth of
   the diver at the particular point on the *Dive Profile*. The gradient factor shown is an
-  interpolation between the FGLow and GFHigh values specified in the Graph tab of the *Preferences
+  interpolation between the GFLow and GFHigh values specified in the Graph tab of the *Preferences
   Panel* of *Subsurface*.
 
 - The bottom margin of the red area in the graph indicates the Bühlman-derived M-value, that is the
@@ -2269,7 +2269,8 @@ during a dive is indicated on the right hand side of the above figure for a dive
 Several actions on either a single dive or a group of dives can be performed using the Dive List
 Context Menu, found by selecting either a single dive or a group of dives and then right-clicking.
 
-image::images/ContextMenu.jpg["Figure: Context Menu",align="center"] # NEEDS REPLACEMENT
+// TODO: NEEDS REPLACEMENT
+image::images/ContextMenu.jpg["Figure: Context Menu",align="center"]
 
 The context menu is used in many manipulations described below.
 
@@ -2598,8 +2599,8 @@ To use _Subsurface cloud storage_ , follow these steps:
 
 ** Open the *Network Preferences* by selecting _File_ -> _Preferences_ -> _Network_.
 ** In the section headed _Subsurface cloud storage_, enter an email address that
-   _Su bsurface can use for user registration.
-** Enter a novel password that_Subsurface_ will use to store the
+   _Subsurface_ can use for user registration.
+** Enter a novel password that _Subsurface_ will use to store the
   dive log in the cloud.
 ** Click _Apply_ to send the above email address and password to the
   (remote) cloud server. The server responds by sending a verification PIN to
@@ -2717,7 +2718,7 @@ image::images/Print1_f22.jpg["FIGURE: Print dialogue",align="center"]
 
 image::images/Print_summarylist_f22.jpg["FIGURE: Print summary table",align="center"]
 
-- _Flow layout_: Print the text associated with each diev without printing the dive profiles
+- _Flow layout_: Print the text associated with each dive without printing the dive profiles
      of each dive (see below):
 
 image::images/Print_flow_layout_f22.jpg["FIGURE: Print flow layout",align="center"]
@@ -2740,7 +2741,7 @@ Next, select the _Print_ button (see image *A* at the start of this section). Th
 dialogue used by the user operating system,
 allowing one to choose a printer and to set its properties (see image below):
 
-image::images/Print_print_f22.jpg["FIGURE: Print one dive / page",align="center"]
+image::images/Print_print_f22.jpg["FIGURE: Print dialog",align="center"]
 
 Set the print resolution of the printer to an appropriate value by changing
 the printer _Properties_. Finally, select the _Print_ button to print the dives.
@@ -2809,7 +2810,7 @@ image::images/Pref1_f20.jpg["FIGURE: Preferences defaults page",align="center"]
      launched, _Subsurface_ will automatically load the specified dive log book. There are three options:
      - _No default file_: When checked, _Subsurface_ does not automatically load a dive log at startup.
      - _Local default file_: When checked, _Subsurface_ automatically loads a dive log from the local hard disk
-       as descibed above.
+       as described above.
      - _Cloud storage default file_: When checked, _Subsurface automatically loads the dive log from the cloud
        device that was initialised using the *Preferences* _Network_ tab (see below).
 
@@ -2844,8 +2845,8 @@ independently, with some units in the metric system and others in imperial.
 Irrespective
 of the above settings, dive time measurements can be either in seconds or minutes.
 Choose the appropriate option. GPS coordinates can be represented either as
-traditionla coordinates (degrees, minutes, seconds) or as decimal degrees
-Choose the appropiate option.
+traditional coordinates (degrees, minutes, seconds) or as decimal degrees
+Choose the appropriate option.
 
 === Graph
 [[S_CCR_options]]
@@ -2955,8 +2956,8 @@ from one's ISP.
    and password are required. This allows _Subsurface_ to email security information
    regarding cloud storage to a user, and to set up the cloud storage appropriately.
    Two additional options are given:
-   - Sync to cloud in the background_: This option allows saving of dive information to the cloud storage
-   while the user performs other tatsks inside _Subsurface_.
+   - _Sync to cloud in the background_: This option allows saving of dive information to the cloud storage
+   while the user performs other tasks inside _Subsurface_.
    - _Save password locally_: This allows local storage of the cloud storage password. Note that this
    information is saved in raw text form, not encoded in any way.
 
@@ -2982,7 +2983,7 @@ for more information.
 
 === Georeference
 
-_Subsurface provides a geo-lookup service (that is, an ability to look up the geographic
+_Subsurface_ provides a geo-lookup service (that is, an ability to look up the geographic
 coordinates of a place name).
 
 [[S_DivePlanner]]
@@ -3042,7 +3043,7 @@ image::images/PlannerWindow1_f20.jpg["FIGURE: Dive planner startup window",align
   above sea level of the dive site. The atmospheric pressure can also be entered as an altitude
   in metres, assuming a sea-level atmospheric pressure of 1.013 bar.
 
-- In the table labeled _Available Gases_, add the information of the cylinders to be used
+- In the table labelled _Available Gases_, add the information of the cylinders to be used
   as well as the gas composition within that cylinder. This is done in a similar way as for
   <<S_CylinderData,providing cylinder data for dive logs>>. Choose the cylinder type by
   double clicking the cylinder type and using the dropdown list, then specify the work
@@ -3144,7 +3145,7 @@ A very low GFLow value brings about decompression stops early on during the dive
  ** For more information about Gradient factors, see the section on xref:S_GradientFactors[Gradient Factor Preference settings].
 
 If the VPM-B model is selected, the Conservatism_level needs to be specified on a scale of 0 (least conservative) to 4 (most conservative).
-This model tends to give deco stops at deeper levels than the Beuhlmann model and often results in slightly shorter
+This model tends to give deco stops at deeper levels than the Bühlmann model and often results in slightly shorter
 dive durations than the Bühlmann model. When selecting one of these models, keep in mind that they are NOT exact physiological models but
 only mathematical models that appear to work in practice.
 
@@ -3193,7 +3194,7 @@ planner, a default dive of depth 15 m for 40 min is offered in the bue design su
 right hand of the screen. The white dots (waypoints) on the
 profile can be dragged with a mouse. Create more waypoints by double-clicking on the profile
 line and ensuring that the profile reflects the intended dive. Drag the waypoints to represent
-the depth and duration of the dive. It is NOt necessary to specify the ascent part of the dive
+the depth and duration of the dive. It is NOT necessary to specify the ascent part of the dive
 since the planner calculates this, based on the settings that have been specified.
 If any of the management limits (for nitrogen, oxygen or gas) is exceeded, the surface
 above the dive profile changes from BLUE to RED.
@@ -3204,7 +3205,7 @@ of that table corresponds to one of the gas mixtures specified in the _Available
 Add new waypoints until the main features of the dive have been completed, e.g. the
 bottom time segment and deep stops (if these are implemented). Leave the remaining
 waypoints on the ascent to _Subsurface_. In most cases _Subsurface_
-computes additional way points in order to fulfill decompression requirements for that
+computes additional way points in order to fulfil decompression requirements for that
 dive. A waypoint can be moved by selecting that waypoint and by using the arrow keys.
 The waypoints listed in the _Dive Planner Points_ dialogue can be edited by hand in
 order to obtain a precise presentation of the dive plan. In fact, one can create the
@@ -3255,7 +3256,7 @@ the transitions are shown separately from the segment durations at a particular
 
 To plan a dive using a passive semi-closed rebreather (pSCR), select _pSCR_ rather than
 _Open circuit_ in the dropdown list.
-The parameters of the pSCR diver can be set by selecting  _File ->   Preferences ->   Graph_
+The parameters of the pSCR dive can be set by selecting  _File ->   Preferences ->   Graph_
 from the main menu, where the gas consumption calculation takes into account the pSCR dump
 ratio (default 10:1) as well as the metabolism rate. The calculation also takes the oxygen drop
 accross the mouthpiece of the rebreather into account. If the
@@ -3432,7 +3433,7 @@ dealing with the appropriate operations.
 [NOTE]
 The operating system of the desktop computer needs the appropriate drivers in
 order to communicate with the dive computer in whichever way the dive
-computer prefers (e.g. bluetooth, USB, infra-red).
+computer prefers (e.g. Bluetooth, USB, infra-red).
 
 	* On Linux users need to have the correct kernel
 	  module loaded. Most distributions will do this automatically, so the
@@ -3533,7 +3534,7 @@ dives.
 === Manually setting up Bluetooth enabled devices
 [icon="images/icons/bluetooth.jpg"]
 [NOTE]
-For dive computers communicating through bluetooth like the Heinrichs
+For dive computers communicating through Bluetooth like the Heinrichs
 Weikamp Frog or the Shearwater Predator and Petrel there is a
 different procedure to get the devices name to communicate with
 _Subsurface_. Follow these steps:
@@ -3584,7 +3585,7 @@ Setting up a connection to download dives from your Bluetooth-enabled device, su
 _Shearwater Petrel_, is not yet an automated process and will generally require the command prompt.
 It is essentially a three step process.
 
- - Enable the Bluetooth controller and pair your dive computer</li>
+ - Enable the Bluetooth controller and pair your dive computer
  - Establish an RFCOMM connection
  - Download the dives with Subsurface
 
@@ -3596,7 +3597,7 @@ and the countdown continues. When downloading the dive from Subsurface, the disp
 
 To establish the connection, establish root access through +sudo+ or +su+.
 The correct permission is required to download the dives in the computer. On most Linux systems this means becoming
-a member of the dialout group (This is identical as for many dive computers using a Linux USB port, descibed
+a member of the dialout group (This is identical as for many dive computers using a Linux USB port, described
 in the previous section). On the command terminal, enter:
 
 +sudo usermod -a -G dialout username+
@@ -3633,7 +3634,7 @@ Now power on the controller and enable authentication:
 		RX bytes:1026 acl:0 sco:0 events:47 errors:0
 		TX bytes:449 acl:0 sco:0 commands:46 errors:0
 
-+Check that the status now includes +'UP', 'RUNNING' AND 'AUTH'+.
+Check that the status now includes +'UP', 'RUNNING' AND 'AUTH'+.
 
 If there are multiple controllers running, it's easiest to off the unused controller(s). For example, for +hci1+:
 
@@ -3682,10 +3683,10 @@ The command to establish an RFCOMM connection is:
 
 +sudo rfcomm -i <controller> connect <dev> <bdaddr> [channel]+
 
-- <controller>+ is the Bluetooth controller, +hci0+.
-- <dev> is the RFCOMM device file, +rfcomm0+
-- <bdaddr> is the dive computer's MAC address, +00:11:22:33:44:55+
-- [channel] is the dive computer's Bluetooth channel we need to connect to.
+- +<controller>+ is the Bluetooth controller, +hci0+.
+- +<dev>+ is the RFCOMM device file, +rfcomm0+
+- +<bdaddr>+ is the dive computer's MAC address, +00:11:22:33:44:55+
+- +[channel]+ is the dive computer's Bluetooth channel we need to connect to.
 
 If one omits it, channel 1 is assumed.  Based on a limited number of user reports,
 the appropriate channel for the dive computer is probably:
@@ -3726,7 +3727,7 @@ below is for a _Shearwater Petrel 2_.
 For a Bluetooth dive computer not in the list above, or if the channel listed is not correct, please
 let the Subsurface developers know on the user forum or the developer mailing list _subsurface@subsurface-divelog.org_.
 
-===== Download the dives with Subsurface</em>
+===== Download the dives with Subsurface
 After establishing the RFCOMM connection and while the dive computer's upload mode countdown is still running, go to_Subsurface_, select _Import->Import from dive computer_ and enter appropriate Vendor (e.g. _Shearwater_), Dive Computer (_Petrel_), Device or Mount Point (_/dev/rfcomm0_) and click _Download_.
 
 
@@ -4337,6 +4338,6 @@ oldest dives get overwritten with new dives. Thus we are only able to
 download the last 13, 30 or 199 dives.
 
 If you have downloaded your dives to different dive logging software
-before they were overwritten, there is a high change that Subsurface can
+before they were overwritten, there is a high chance that Subsurface can
 import these. However, if the logs are only on your dive computer, they
 cannot be salvaged after being over written by new dives.