Update README.md

Author: adamgraham

README.md

@@ -6,4 +6,4 @@
 - **Topics**: Side Scrolling, Infinite Generation, Hiscores
 - **Version**: Unity 2021.3 (LTS)
 - [**Download**](https://github.com/zigurous/unity-dino-game-tutorial/archive/refs/heads/main.zip)
-- [**Watch Video**](https://www.youtube.com/c/zigurous)
+- [**Watch Video**](https://youtu.be/UPvW8kYqxZk)