Fix: Update embedding link of video (#19)

- Update embedding link of video (5b889b32965a6a911738a57ed6218e6746aef84f)


Co-authored-by: Rodin <[email protected]>

tdagent/grchat.py

@@ -754,7 +754,7 @@ with (
             """,
             )
             gr.HTML(
-                """<iframe width="560" height="315" src="https://www.youtube.com/watch?v=C6Z9EOW-3lE" frameborder="0" allowfullscreen></iframe>""",  # noqa: E501
+                """<iframe width="560" height="315" src="https://www.youtube.com/embed/C6Z9EOW-3lE" frameborder="0" allowfullscreen></iframe>""",  # noqa: E501
             )
 
     ## UI Events ##