Update index.html

index.html

@@ -14,7 +14,11 @@
   The half conversations are not included. </div>
 
 <div style="padding:0 72px 20px 72px"> Click on a line to play the corresponding part of audio. 
-  These utterance level time-alignments are taken from the json transcriptions distributed with Spjallrómur. This corpus does
+  It will stop at the end of the line, or click again to stop sooner. 
+  Right-click etc. to start playing both speakers together, until you right-click again to stop. 
+  Not tested in all browsers.</div>
+  
+<div style="padding:0 72px 20px 72px"> These utterance level time-alignments are taken from the json transcriptions distributed with Spjallrómur. This corpus does
 not say that it comes with aligned transcripts, so a lot of alignment errors could be expected. However, at the sentence level, 
   the alignment often seems very good (even if words within the sentence are aligned badly) and bad sentence alignments usually still 
   point near a relevant part of the conversation.</div>