[Keymap] ErgoDox EZ Spanish Colemak (#6258)

* keyboard

* documentation

* address PR comments #1

* address PR comments #2

keyboards/ergodox_ez/keymaps/colemak_es_osx/readme.md

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+# ErgoDox EZ Spanish Colemak configuration
+
+## Description
+
+A Colemak keymap adapted for Spanish.
+
+### Base Layer - Spanish Colemak
+
+The Base Layer is a Colemak keymap with an additional "ñ" next to the "y" key. The arrow cluster has a proper T inverted shape.
+
+It includes almost all Spanish Symbols from a normal 100% keyboard thanks to the use of tap keys
+
+
+| Pressed | Tap | Shift | Alt |   
+|---|---|---|---|
+|Left Ctrl|PgDn|||
+|Left Alt|`|ˆ|[|
+|Left Cmd|+|*|]|
+|Right Cmd|´|¨|{|
+|Right Alt|ç|Ç|}|
+
+For example, if you want to type ```[]```, you keep pressing the "Left Alt" (To modify) and tap "Right Alt" and "Right Cmd" to send "[" and "]"
+
+### Qwerty Layer
+
+A Qwerty layer for gaming and maybe some VIM commands. It just modifies the few keys that are different between Colemak and Qwerty and keep all the others keys
+
+### Fn Layer
+
+A layer to change the number row including "º" and "¡" for "Fn1" to "Fn12". The rest is just the same as the Base layer
+
+### Mouse and media controls
+
+Mouse movement on the left hand, wheel and buttons on the right hand. "Play/Pause", "Rewind", "Forward" in the Left inner column. "Volume Up", "Volume Down" and "Mute" in the Right inner column
+
+### Numpad
+
+A complete numpad in the right hand, plus and Arrow cluster on the left hand
+
+### IDEA (JetBrains IDEs)
+
+A momentary layer for IDEA shortcuts that require more than two fingers or any Fn key
+
+## How to build it
+
+If you already have all the dependencies (Check QMK's documentation), you can run the command:
+
+```bash
+make ergodox_ez:colemak_es_osx
+```
+
+On MacOS, if you're using MacPorts you can install the following dependencies:
+
+```bash
+port install avr-binutils
+port install avr-gcc
+port install avr-libc
+```
+
+This isn't an exhaustive list and maybe there other dependencies that are technically necessary 
+
+## Changelog
+
+* Jul 2019:
+    * Initial version for the new QMK version
+
+![](https://imgur.com/AyWNGlL.png)