Update README.md

SebLague · web-flow · commit 2bfb99f716e7 · 2021-02-12T21:08:40.000+01:00
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 # Chess-AI
+A fairly simple chess program, implementing in C# in the Unity game engine.
  
+[Watch video](https://www.youtube.com/watch?v=U4ogK0MIzqk)
+[Download and play](https://sebastian.itch.io/chess-ai)
+![Image](https://github.com/SebLague/Images/blob/master/Chess.png)
