GH60 Refactor: Move Satan into GH60 directory (#6485)

* Move Satan into the GH60 directory to avoid the confusion of what PCB people have

* set bootmagic to lite

* rename gh60 file to revc

keyboards/gh60/satan/keymaps/denolfe/README.md

@@ -0,0 +1,12 @@
+# denolfe's Layout
+Customized Satan keymap 
+
+![Layout](https://i.imgur.com/IrSUSMR.png "Practical Keymap")
+
+## Programming Instructions:
+`cd` into keymap directory, `make dfu`
+
+## Features
+- Movement keys with <kbd>CapsLock</kbd> + <kbd>h</kbd>, <kbd>j</kbd>, <kbd>k</kbd>, <kbd>l</kbd>
+- Media Keys
+- Backlight control