* info.json: apply friendly formatting
* info.json: update labels; reposition keys
* wang_ergo.h: use XXX for KC_NO
* wang_ergo.h: add matrix diagram
* rename LAYOUT to LAYOUT_all
* move Backspace keycode to top row
Moves the matrix argument/keycode for Backspace to its proper position at the end of the top row.
* add LAYOUT_2x2u with keymap
* info.json: update maintainer field
Use the maintainer's GitHub username.
