added function keys (#37)

* added function keys

* added function keys

* added icons

---------

Co-authored-by: keymap-editor[bot] <91849743+keymap-editor[bot]@users.noreply.github.com>
Co-authored-by: DarrenVictoriano <26513979+DarrenVictoriano@users.noreply.github.com>

images/corne.yaml

@@ -36,8 +36,8 @@ layers:
   - '0'
   - $$mdi:volume-low$$
   - $$mdi:volume-high$$
-  - ''
-  - ''
+  - $$mdi:brightness-3$$
+  - $$mdi:brightness-7$$
   - ''
   - ⌘⇧
   - $$mdi:apple-keyboard-command$$
@@ -89,3 +89,46 @@ layers:
   - $$mdi:keyboard-space$$
   - {t: raise, type: held}
   - $$mdi:apple-keyboard-option$$
+  adjust:
+  - ⌃⌥F2
+  - ''
+  - F7
+  - F8
+  - F9
+  - F12
+  - ''
+  - ''
+  - ''
+  - ''
+  - ''
+  - ''
+  - ''
+  - ''
+  - F4
+  - F5
+  - F6
+  - F11
+  - ''
+  - ''
+  - ''
+  - ''
+  - ⌃⌥
+  - $$mdi:apple-keyboard-control$$
+  - ''
+  - ''
+  - F1
+  - F2
+  - F3
+  - F10
+  - ''
+  - ''
+  - ''
+  - ''
+  - ''
+  - ⌃⇧
+  - $$mdi:apple-keyboard-command$$
+  - {t: lower, type: held}
+  - ''
+  - ''
+  - {t: raise, type: held}
+  - $$mdi:apple-keyboard-option$$