Create README.md

Author: TheKitty

Feather_Holiday_Lights/README.md

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+## Feather Holiday Lights
+
+Arduino sketches to animate holiday lights using Adafruit Feather boards.  
+
+The files in this repository accompany the [Adafruit Learning System](https://learn.adafruit.com) 
+tutorial at: https://learn.adafruit.com/festive-feather-holiday-lights
+
+Please consider buying your parts at [Adafruit.com](https://www.adafruit.com) to support open source code
+
+All code MIT License, please attribute to Adafruit Industries
+
+If you are looking to make changes/additions, please use the GitHub Issues and Pull Request mechanisms.
+
+---------------------------------
+
+This code was formerly at https://github.com/adafruit/Feather_Holiday_Lights - this has now been archived.