Keymap: Merlin Learns to QMK (#3820)

* Fix up my keymaps to use more QMK features

* update 60_ansi readme

* add the start of my userspace

* begin to use my new userspace

* use more of my userspace

* spread userspace love to my clueboard

* spread userspace love to 75 layout

* add a fairly vanilla readme

* put the FNX into a userspace incase I ever want to use it for something else

* respond to drashna's code review comments

layouts/community/60_ansi/mechmerlin-ansi/readme.md

@@ -10,8 +10,8 @@ It is used on his
 [NPKC KC60](https://github.com/qmk/qmk_firmware/tree/master/keyboards/kc60)   
 
 ## Keymap Notes
-- Highly influenced by the KBP V60 and WKL B.Face standard layouts
-- Arrow toggle switch is FN + Space
+- Arrow toggle switch is tapping the `FN` key once. 
+- `Caps Lock` can be held to act as a `Left Control`
 
 ### Build
 To build the firmware file associated with this keymap, simply run `make your_keyboard:mechmerlin-ansi`.