Added Meta data schema

Author: dbasantes

articles/communication-services/concepts/voice-video-calling/call-recording.md

@@ -129,7 +129,7 @@ Many countries and states have laws and regulations that apply to the recording
 
 Regulations around the maintenance of personal data require the ability to export user data. In order to support these requirements, recording metadata files include the participantId for each call participant in the `participants` array. You can cross-reference the MRIs in the `participants` array with your internal user identities to identify participants in a call. An example of a recording metadata file is provided below for reference.
 
-## Language availability
+## Available Languages
 Currently, Azure Communication Services Call Recording APIs are available in C# and Java.
 
 ## Next steps