Adds video to readme

Author: akaalias

README.md

@@ -20,6 +20,11 @@ Optionally you can customize...
 
 ![basic functionality](https://github.com/akaalias/extract-highlights-plugin/blob/master/highlight.gif?raw=true)
 
+
+### Watch the Quick-Start Tutorial!
+
+![https://www.youtube.com/watch?v=KWdEatdD2bo](https://github.com/akaalias/extract-highlights-plugin/blob/master/video.png?raw=true)
+
 #### Using the Hotkey to EXTRACT highlights
 
 The default hotkey is: