Droxx keymap (#16607)

* add droxx kaymap

* add droxx keymap

* fixed config.h

* fixed rules.mk

* fixed rules.mk

* updated readme.md

* Update config.h

* Update keymap.c

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update readme.md

* Update config.h

* Update readme.md

* Update keymap.c

keyboards/kbdfans/kbd67/rev2/keymaps/droxx/readme.md

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+## Droxx's ANSI style keymap for the KBD67 REV 2 PCB
+
+* An ANSI keymap layout made by Alex for the KBD67 Rev 2
+* This keymap features two layers using basic Fn alternate keys on the second layer as well as lighting control
+
+![KBD67Rev2 Layout](https://i.imgur.com/DPSMhIX.png)
+
+### Layer 0 (_DRXXMAIN)
+
+The base QWERTY layer
+
+* Basic qwerty key layout with nothing other than an Fn key
+* Fn on the bottom row activates layer 1
+
+### Layer 1 (_DRXXFN)
+
+The function layer
+
+* Backspace will trigger KC_DEL until I find the KC_HOME key less useful.
+* Pressing T will toggle the keyboard underglow feature on and off.
+* Keys Q and E are used to change the underglow style of the keyboard.
+* Keys W and S modify the brightness of the underglow.
+* Keys A and D change the speed of the LED RGB animation.
+
+~~When Fn is held on layer 0, the arrow keys become a control surface for the LED baclighting~~
+~~The up arrow is used to cycle backlight modes, down arrow for toggling the backlight on or off,~~
+~~and the right and left for increasing and decreasing the brightness respectively.~~[^note]
+* X is used to disable the GUI key and C is used to enable the GUI key.
+
+[^note]: I don't have in-switch LEDs installed?