Update capabilities.md

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cc: @tomaschladek

Author: tomaschladek

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

@@ -59,6 +59,7 @@ In this article, you will learn which capabilities are supported for Teams exter
 | Screen sharing    | Share the entire screen from within the application                                                                 | ✔️        |
 |                   | Share a specific application (from the list of running applications)                                                | ✔️        |
 |                   | Share a web browser tab from the list of open tabs                                                                  | ✔️        |
+|                   | Receive your screen sharing stream                                                                                  | ❌        |
 |                   | Share content in "content-only" mode                                                                                | ✔️        |
 |                   | Receive video stream with content for "content-only" screen sharing experience                                      | ✔️        |
 |                   | Share content in "standout" mode                                                                                    | ❌        |