RGBKB Sol 3 rev1: Configurator Data and Readme (#16798)

* add QMK Configurator data

* add readme file

1 files changed, 26 insertions, 0 deletions

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+# Sol 3
+
+![Sol 3](https://raw.githubusercontent.com/noroadsleft/qmk_images/master/keyboards/rgbkb/sol3/rev1/rgbkb_sol3_rev1_01.jpg)
+
+An extensible split keyboard with hotswap sockets and per-key RGB lighting.
+
+* Keyboard Maintainer: [XScorpion2](https://github.com/XScorpion2), [RGBKB](https://github.com/rgbkb)
+* Hardware Supported: RGBKB Sol 3 rev1 (STM32F303)
+* Hardware Availability: [RGBKB.net](https://www.rgbkb.net/collections/sol-3)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make rgbkb/sol3/rev1:default
+
+Flashing example for this keyboard:
+
+    make rgbkb/sol3/rev1:default:flash
+
+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).
+
+## Bootloader
+
+To reset the board into bootloader mode, do one of the following:
+
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available (Adjust + R by default)
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard (also erases persistent settings)