Mark: Listed participation

README.md

@@ -42,6 +42,7 @@ There will be a cookie jar in Max N's office, filled with homebaked cookies. For
 | Olle | Python |
 | Sebastian | [Haskell](https://www.youtube.com/playlist?list=PLK8999LLfv8tdVSSltE_KFXHxqjJq3scS) |
 | BoB | Python | 
+| Mark | JavaScript |
 
 ## Private leaderboard:
 If you are not in the leaderboard FelixAgner, use the code 1475493-197fbcd8 to join.