Move docs/ to docs/en/

It allows comparison between the directories and helps translations.

docs/en/extension_stringy_keymaps.md

@@ -0,0 +1,29 @@
+# Stringy Keymaps
+
+Enables referring to keys by `'NAME'` rather than `KC.NAME`.
+
+For example:
+
+```python
+from kmk.extensions.stringy_keymaps import StringyKeymaps
+
+# Normal
+# keyboard.keymap = [[ KC.A, KC.B, KC.RESET ]]
+
+# Indexed
+# keyboard.keymap = [[ KC['A'], KC['B'], KC['RESET'] ]]
+
+# String names
+keyboard.keymap = [[ 'A' , 'B', 'RESET' ]]
+
+stringyKeymaps = StringyKeymaps()
+
+# Enabling debug will show each replacement or failure.
+# This is recommended during the initial development of a keyboard.
+# stringyKeymaps.debug_enable = True
+
+keyboard.extensions.append(stringyKeymaps)
+```
+
+It should be noted that these are **not** ASCII. The string is **not** what
+will be sent to the computer. The examples above have no functional difference.