1UP Keyboards 1UP60HTE layout macro touch-up (#13529)
* rename LAYOUT_tsangan to LAYOUT_60_tsangan_hhkb
... and enable Community Layout support.
* use four-space indent and QMK-native keycode aliases
* rules.mk touch-up
- remove Bootloader selection header comments
- unify Build Options comment header to QMK template
- align inline comments
* readme.md touch-up
- convert metadata to list
- add Flashing command
* move layout macro alias to info.json
* apply friendly formatting to info.json
* restore badger keymap to previous (don't edit user keymap)
6b6ee5fa28