[Keyboard] ErgoTaco Support (#5504)

* ErgoTaco support

* Update keyboards/ergotaco/ergotaco.h

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/ergotaco/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/ergotaco/keymaps/default/keymap.c

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/ergotaco/readme.md

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/ergotaco/readme.md

Co-Authored-By: germ <jeremythegeek@gmail.com>

* Update keyboards/ergotaco/rules.mk

Co-Authored-By: germ <jeremythegeek@gmail.com>

* juggling rules.mk

* Update keyboards/ergotaco/rules.mk

Co-Authored-By: germ <jeremythegeek@gmail.com>

* updating IS_COMMAND

* learning2english


Meme-tastic --Drashna

keyboards/ergotaco/readme.md

@@ -0,0 +1,24 @@
+# Gergo
+
+![ErgoTaco](https://i.redd.it/dbcu5i21m3i21.jpg)
+
+It's a Taco with a side of HASL. A 12 key fiesta of a board.
+
+Keyboard Maintainer: [Jeremy Bernhardt](https://github.com/germ)  
+Hardware Supported: ErgoTaco  
+Hardware Availability: [gboards.ca](http://gboards.ca)  
+
+## Firmware building
+Clone the QMK Repo and install dfu-programmer, flash with:
+
+    make ergotaco:default:dfu
+
+And reset your keyboard!
+
+To just test if your build system is sane, try compiling the default keymap using:
+   
+    make ergotaco: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).
+
+## Have an idea? [Reach out to me!](mailto:bernhardtjeremy@gmail.com)