Update live2vod.bs

Author: haudiobe

specs/live2vod/live2vod.bs

@@ -6,10 +6,9 @@ Shortname: live2vod
 URL: https://dashif.org/Guidelines/master/live2vod.html
 Group: dashif
 
-!Contributors: [Thomas Stockhammer](https://linkedin.com/in/stockhammer)
+!Contributors: [Thomas Stockhammer](https://linkedin.com/in/stockhammer), [Rufael Mekuria](https://www.linkedin.com/in/rufael-mekuria-652b4828/)
 !Contributor: Rufael Mekuria
-!Key Word: VoD
-!Key Word: Live
+!Key Words: VoD, Live
 !Related Features: Live
 </pre>