Add PID 5391 Hybrid Controller Base

Add initial documentation for Hybrid Controller Base firmware.

Author: CDiOS

1209/5391/index.md

@@ -0,0 +1,9 @@
+---
+layout: pid
+title: Hybrid Controller Base
+owner: infinite
+license: MIT
+site: https://github.com/CDiOS/infinite-hid-controller-base
+source: https://github.com/CDiOS/infinite-hid-controller-base
+---
+USB HID hybrid simulation controller base firmware for Arduino Leonardo compatible boards using the Arduino Joystick Library. Provides a simple open reference sketch with two analog axes and example button inputs for further customization.