* refactor yd60mq.h
- four-space indent
- use K<row><col> base32hex notation
- rename LAYOUT to LAYOUT_all (with alias for backwards compatibility)
* refactor yd60mq.c to use led_update_kb()
* align rules.mk to AVR template
* refactor default keymap
Also correct positions for KC_NUHS and KC_NUBS.
* update readme
* add Configurator layout support
* initialize the Caps Lock LED pin properly
* fix layout macro and update keymaps
K2D switch position is actually physically on the top row, as the right half of a split Backspace.
* add QMK Configurator layout support