* handwired/qc60: refactor and Configurator update
- correct layout macro name (LAYOUT_ANSI_DEFAULT to LAYOUT_ansi_default)
- add layout data for remaining layout macros
- correct ISO layout macros (neither had a split left Shift)
- refactor LAYOUT_iso_alt (place KC_NUHS key on home row; consistent with LAYOUT_iso_default)
- proto.h refactored to use #pragma once include guard
* handwired/qc60: keymap refactor
- delete redundant KC_TRNS and KC_NO aliases
* handwired/qc60: readme update
- update header (made consistent with QMK template)
- update Docs links (Newbs Guide; grammar)
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