Update toc.yml

Author: sloanster

articles/communication-services/toc.yml

@@ -83,6 +83,8 @@ items:
       href: quickstarts/voice-video-calling/get-started-call-recording.md
     - name: Handle calling events
       href: quickstarts/voice-video-calling/handle-calling-events.md
+    - name: Accessing call volume levels
+      href: quickstarts/voice-video-calling/get-started-volume-indicator.md
     - name: Raw media access
       href: quickstarts/voice-video-calling/get-started-raw-media-access.md
   - name: Call Automation