* Add Configurator layout data for LAYOUT_hotswap
* Add LAYOUT_std60_split_num0
Requested by 李小安#9728 on QMK Discord.
Standard 60% ANSI layout for the alphanumeric region, with a split-0 Numpad.
Includes a sample keymap.
* Update Docs links on readme
* Change melody96.h to use #pragma once include guard
* Change config.h to use #pragma once include guard
* Add readme for default_std60_split_num0 keymap
* Add default value for IS_COMMAND for COMMAND feature
* Cleanup and consistency
* Update Templates to reflect change
* Fix IS_COMMAND in template
* Fix IS_COMMAND define
* Use consistent IS_COMMAND block in templates
* Remove unnecessary `#undef IS_COMMAND` directives
* Fix compile issue on orthodox
* Reomve IS_COMMAND option for newer boards
* Remove all existing definitions of IS_COMMAND if they use default LSHIFT and RSHIFT setting
* Remove a couple of additional IS_COMMAND defines
* Remove remaining redundant IS_COMMAND definitions
* Remove #undef IS_COMMAND from orthodox:drashna and whitefox:konstantin
* Remove multiple empty lines in modified config.h files
* Update additional boards
* Reomve IS_COMMAND from newer boards
* Update Alice keyboard
* Remove IS_COMMAND from additional boards
Jan 24th edition
* Remove chording as it is not documented, not used, and needs work.
* Make Leader Key an optional feature.
* Switch from `PREVENT_STUCK_MODIFIERS` to `STRICT_LAYER_RELEASE`
* Remove `#define PREVENT_STUCK_MODIFIERS` from keymaps.
