Add physical layouts and update the keymap for King of Hedgehogs' Jian.
Layouts are added for all three possible transforms:
- Full (with additional pinky key)
- 6 column (Corne)
- 5 column (Minidox)
The layouts are added to be re-usable for the Jiran and other custom boards/shields.
Keymap update includes, small guide clarifications, output selection,
tri-layer and &studio_unlock.
Alexander Krikun