update readme

Author: tlambert03

README.md

@@ -1,3 +1,5 @@
 # PyQt6Ads
 
-PyQt6 Bindings for [Qt-Advanced-Docking-System](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System)
+PyQt6 Bindings for (the amazing) [Qt-Advanced-Docking-System](https://github.com/githubuser0xFFFF/Qt-Advanced-Docking-System)
+
+[![Video Advanced Docking](doc/advanced-docking_video.png)](https://www.youtube.com/watch?v=7pdNfafg3Qc)