[Keyboard] move That-Canadian 's boards into /maple_computing (#16050)

keyboards/maple_computing/minidox/keymaps/dustypomerleau/README.md

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+## dustypomerleau, Minidox layout
+
+The rationale behind my layout can be summarized as follows:
+
+- Symmetry is important because use-cases are hard to predict. Whenever possible, modifiers and layer keys should be available from either hand.
+- Inward rolls should be leveraged not just for alphas (Colemak DHm), but also for coding/symbols.
+- Number order—like alpha order—should be designed to favor use of the strongest fingers.
+- One-shot keys can greatly reduce the strain of typing, and should be leveraged.
+
+Some aspects of my layout are optimized for macOS (order of modifiers, manner of producing en and em dashes, coding of micro-volume adjustments, etc.), but can be easily tweaked for the OS of your choice.
+
+Shift can be a tricky modifier when used in `MT()` combinations, particularly for fast typists on split boards using serial. This can be partially mitigated with options in `config.h`, but still requires a relatively strict typing style/accuracy from the fast typist. The tendency is for faster typists to combat mod/tap mistakes by using very short intervals for `TAPPING_TERM`, but this can introduce its own set of complications. Shift is also one of the highest-yield opportunities to use `OSM()`. For these reasons, I pulled Shift onto dedicated keys in the thumbs for use during regular typing (the home row Shifts have been left in place for use during selection and keycuts). 
+
+The tapdance code that I used to create mod/tap keys inside my symbol layer allows up to 2 consecutive symbols within `TAPPING_TERM`. If you think you will need to quickly nest more than that, feel free to add more `case`s.
+
+### Special thanks
+
+- Everyone on the QMK Discord, for helping me work out the code for mod/tap keys using shifted symbols.
+- Everyone on the Colemak Discord, for their initial feedback on the layout.
+- @stevep and @DreymaR, for their work on Colemak DH(m), a truly awesome typing experience (and of course Shai Coleman, for starting it all off!).
+- @ckofy, for offering a dramatic improvement on Dvorak's original number order.
+- u/That-Canadian, for designing this awesome keyboard.
+
+### Questions or comments?
+
+- GitHub @dustypomerleau
+- Twitter @duspom
+- Discord @dusty#8897