refector: editoral change in ActionOutput

Co-authored-by: Jan Romann 

Author: relu91

index.html

@@ -1333,7 +1333,7 @@ The ActionInteractionOutput interface
           [=in parallel=].
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-          If invoking this method is not supported (e.g., synchronous action)
+          If invoking this method is not supported (e.g., because the action is synchronous)
           [=reject=] |promise| with a {{NotSupportedError}} and stop.
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