Rearrange the file layout in preparation of becoming a monorepo

Move the documentation to `doc/plugin/Hardware-Technomancy-Atreus.md`. This is
in preparation of merging plugins into a single monorepo.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

README.md

@@ -1,11 +1,8 @@
 # Kaleidoscope-Hardware-Technomancy-Atreus
 
-This is a plugin for [Kaleidoscope][fw], that adds hardware support for the
+[![Build Status][travis:image]][travis:status]
-[Atreus][atreus]. Supported models include post-2016 PCB variants with an A*
-MCU, and the hand-wired variant from [FalbaTech][falba] with a Teensy2.
 
-PCBs prior to 2016, and the legacy teensy2 variants are not supported.
+ [travis:image]: https://travis-ci.org/keyboardio/Kaleidoscope-Hardware-Technomancy-Atreus.svg?branch=master
+ [travis:status]: https://travis-ci.org/keyboardio/Kaleidoscope-Hardware-Technomancy-Atreus
 
- [fw]: https://github.com/keyboardio/Kaleidoscope
+See [doc/plugin/Hardware-Technomancy-Atreus.md](doc/plugin/Hardware-Technomancy-Atreus.md) for documentation.
- [atreus]: https://atreus.technomancy.us/
- [falba]: https://falba.tech/

doc/plugin/Hardware-Technomancy-Atreus.md

@@ -0,0 +1,11 @@
+# Kaleidoscope-Hardware-Technomancy-Atreus
+
+This is a plugin for [Kaleidoscope][fw], that adds hardware support for the
+[Atreus][atreus]. Supported models include post-2016 PCB variants with an A*
+MCU, and the hand-wired variant from [FalbaTech][falba] with a Teensy2.
+
+PCBs prior to 2016, and the legacy teensy2 variants are not supported.
+
+ [fw]: https://github.com/keyboardio/Kaleidoscope
+ [atreus]: https://atreus.technomancy.us/
+ [falba]: https://falba.tech/