Update index.yml

Author: Juliako

articles/media-services/video-indexer/index.yml

@@ -21,7 +21,7 @@ landingContent:
 # Cards and links should be based on top customer tasks or top subjects
 # Start card title with a verb
   # Card (optional)
-  - title: About Media Services Video Indexer
+  - title: About Azure Media Services Video Indexer
     linkLists:
       - linkListType: overview
         links: