Update TOC.yml

Author: Juliako

articles/media-services/latest/TOC.yml

@@ -5,6 +5,7 @@
   - name: About Media Services
     href: media-services-overview.md
   - name: What's new in Media Services
+    displayName: release notes
     href: release-notes.md    
 - name: Tutorials
   expanded: true