* keymap simplification and fancy alt tab behaviour
* move symbols around and try ergo numbers
* mess with symbol positions
* f11 and f12 for volume control (for ease of remapping)
* slack unread navigation
* experiment with mods on home row
* mods on symbol layer
* dedicated tab left and tab right keys
* swap next and prev
* remove hold to shift on a and o
* revert to simpler keymap
* restore readme
* point to keymap image
* cmd + cmd -> cmd + ctrl
* expand readme
* slack unread channel navigation
* Update keyboards/planck/keymaps/callum/keymap.c
Co-Authored-By: Drashna Jaelre <drashna@live.com>
* return true from cmd handling block