[Keyboard] Add NumDiscipline Keyboard - Modified Version of Discipline With Numpad (#9112)

* NumDiscipline firmware compiled

* renamed folder, deleted config.h from default

* deleted commented out code

* fix readme make example for lowercase foldername

* Update keyboards/ericrlau/numdiscipline/rev1/rules.mk

* Update product name

* Apply suggestions from code review - layout naming and key object ordering

1 files changed, 23 insertions, 0 deletions

diff --git a/keyboards/ericrlau/numdiscipline/readme.md b/keyboards/ericrlau/numdiscipline/readme.md
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+# NumDiscipline
+
+![NumDiscipline](https://github.com/ericrlau/NumDiscipline/blob/master/images/NumDiscipline-pcb-front.png?raw=true!)
+
+A modified version of the through hole 65% Discipline keyboard by cftkb. 
+
+* Modifications from original Discipline
+* Add numpad on right.
+* Move arrow keys 0.25U down and right, similar to 1800 layout.
+* Adjust component layout on top of board, moving ATMega and buttons to the right, adding in more diodes in center.
+* Removed ~, Delete, Page Up, Page Down keys. These will be on alternate layer.
+
+Other Information: 
+
+* Keyboard Maintainer: [ELau](https://github.com/ericrlau)
+* Hardware Supported: The PCBs, controllers supported
+* Hardware Availability: https://github.com/ericrlau/NumDiscipline
+
+Make example for this keyboard (after setting up your build environment):
+
+    make ericrlau/numdiscipline/rev1:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).