[web-animations-1] Fix typo in linking of 'scheduled event time'

Author: birtles

web-animations-1/Overview.bs

@@ -1713,7 +1713,7 @@ as follows:
         origin-relative time">convert timeline times to origin-relative
         time</a>, let the [=scheduled event time=] be the result of applying
         that procedure to |timeline time|.
-        Otherwise, the [scheduled event time=] is an [=unresolved=] [=time
+        Otherwise, the [=scheduled event time=] is an [=unresolved=] [=time
         value=].
 
         Otherwise, [=queue a task=] to [=dispatch=] |cancelEvent| at