[Keyboard] Add Hillside 52 (#17374)

* 52 Keymap.json: Set for Hillside 52

- Change script rows

* 52 Keymap.c: mirror .json

CAPSWORD, QK_BOOT, readme cleanup, EE_RST

* 52 Keymap.json: Initial files copy from 56

* 52 Keymap.json nav/edit lay, thumb shift, syms

- Del in backspace spot on sym layer
- Thumb shift OSM instead of extra space
- Nav/edit on num/fn: arrows cut copy paste undo redo, page up/down
- Fn keys bottom row to allow nav edit keys
- App and AltGr on lower row, on their layer
- Braces on index, so more common -= on middle ring.
- Adjust has Ctrl/GUI swap
- EE_RST, CAPSWORD, QK_BOOT, SPLIT_DETECT

* 52 Family: readme image and folder link

* 52 Board: initial copy from 56

* 52 Keymap via

* 52 Board: remove keys, cant columns, better ids

- .json: vid: MM, pid: H52

* 52 Keymap.c: initial.c copy from 48

* QK_BOOT EE_CLR, not ANY(), as config.qmk supports

- CAPSWRD instead of ANY, though config.qmk still converts to ANY()

* Cleanup readme

* 52 Keymap: Remove redundant key, cleanup script

* 52 Keymap: Fix template

* 52 Readme: Link lower res image better for readme

Co-authored-by: Drashna Jaelre <drashna@live.com>

* 52 Keymap: Move pretty-print script to GitHub wiki

* 52 Keymap: Link to 1024 res image thumbnails

* 52 Keymap: fix whitespace before image link

* Family: Fix image link to 1024 thumb

Co-authored-by: Drashna Jaelre <drashna@live.com>

* 52: Keymap: Caps word on a layer home row

* 52: Keymap: Arrows on right. Symmetric layer keys.

- Nav:
  - Arrows on right so up/down more intuitive. Page up/down on ends
  - Cut on home row, as more common

- Sym:
  - Layer mods on activate hand, extras symbols on left
  - Common digits on lower row

- Base:
  - Layer keys symmetric, on most extended, not resting, thumb
  - Mute on util key for easy use

- Swap layers 3 and 4 to match swapped thumbs

Co-authored-by: mmccoyd <mmccoyd@cs.berkley.edu>
Co-authored-by: Drashna Jaelre <drashna@live.com>

1 files changed, 29 insertions, 0 deletions

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+# Hillside 52
+
+![hillside](https://imgur.com/eDqDMk7h.png)
+
+[Hillside 52](https://github.com/mmccoyd/hillside)
+ is a split ergonomic keyboard with 3x6+3+5 choc-spaced keys,
+ splayed ring and pinkie columns, aggressive column stagger,
+ a longer thumb arc, an inverted-T arrow cluster and a breakoff outer-pinkie column.
+
+* Keyboard Maintainer: [Michael McCoyd](https://github.com/mmccoyd)
+* Hardware Supported: ProMicro/Elite-C and compatible
+* Hardware Availability: https://github.com/mmccoyd/hillside
+
+Make example for this keyboard (after setting up your build environment):
+
+    make handwired/hillside/52:default
+
+Flashing example for this keyboard:
+
+    make handwired/hillside/52:default:flash
+
+## Bootloader
+
+Enter the bootloader by either:
+
+* **Physical reset button**: Briefly press the button on the front of the PCB.
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).