* Duplicate default layout as basis of my own
* Basic Colemak layer, just to practice flashing
* Add reset button so that we don't have to short out the reset button on the board to flash it.
* Symbols layer
* Navigation layer, and remove unused keys. Now usable, nice.
* Correct backspace for UK QWERTY mapping
* Small clarification in XD75RE readme instructions
* Use UK pipe so that I can type a pipe on a UK keyboard
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