Update overview.md

Author: tomaschladek

articles/communication-services/concepts/interop/guest/overview.md

@@ -35,7 +35,7 @@ You can create an identity and access token for Teams external users on Azure po
 
 With a valid identity, access token, and Teams meeting URL, you can use [Azure Communication Services UI Library](https://azure.github.io/communication-ui-library/?path=/story/composites-call-with-chat-jointeamsmeeting--join-teams-meeting) to join Teams meeting without any code.
 
->[!VIDEO https://www.youtube.com/embed/chMHVHLFcao]
+>[!VIDEO https://www.youtube.com/embed/FF1LS516Bjw]
 
 ### Single-click deployment
 
@@ -77,7 +77,6 @@ The following table show supported use cases for Teams external user with Azure
 Any licensed Teams users can schedule Teams meetings and share the invite with external users. External users can join the Teams meeting experience via existing Teams desktop, mobile, and web clients without additional charge. External users joining via Azure Communication Services SDKs will pay
 [standard Azure Communication Services consumption](https://azure.microsoft.com/pricing/details/communication-services/) for audio, video, and chat. There's no additional fee for the interoperability capability itself.
 
-
 ## Next steps
 
 - [Authenticate as Teams external user](../../../quickstarts/identity/access-token-teams-external-users.md)