fix typo: simulast

Author: fippo

webrtc-stats.html

@@ -639,7 +639,7 @@ <h3>
         </p>
         <p>
           For a given RTP stats object, its total counters must always increase,
-          but due to changes in SSRC, simulast layers dropping or transceivers
+          but due to changes in SSRC, simulcast layers dropping or transceivers
           stopping, an RTP stats object can be deleted and/or replaced by a new
           RTP stats object. The caller will need to be aware of this when aggregating
           packet counters accross multiple RTP stats objects (the aggregates may