added link to the video

README.md

@@ -2,7 +2,7 @@
 
 This is a Pong game on an Altera FPGA as an exercise in Hardware-/Software-Codesign.
 
-The video below shows it in action, running on an university-made extension board.
+[The video below](images/video.mp4) shows it in action, running on an university-made extension board.
 [![](images/video.jpeg)](images/video.mp4)
 
 ## Source files