Update dns-records-for-office-365-gcc-high.md

Added MS teams to the Document

Fixes https://github.com/MicrosoftDocs/microsoft-365-docs/issues/12727

Author: msbemba

microsoft-365/enterprise/dns-records-for-office-365-gcc-high.md

@@ -50,7 +50,7 @@ The MX record value for your accepted domains follows a standard format as noted
 
 For example, if your tenant name is contoso.onmicrosoft.us, you’d use **contoso.mail.protection.office365.us** as the value for your MX record.
 
-## Skype for Business Online
+## Skype for Business Online and Microsoft Teams
 
 ### CNAME records