Update token-gated-chat.mdx (#77)

* Update token-gated-chat.mdx

Changed the YouTube Video link.

* Update video url to embed

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

Author: shaki150697

token-gated-chat.mdx

@@ -4,7 +4,8 @@ title: "Video: Token Gated Chat"
 
 Watch Calum build an NFT-gated chat app with Polybase from scratch.
 
-<iframe width="560" height="315" src="https://youtu.be/dZfpdNJYZPc" title="Build an NFT Gated Chat App using Polybase | Tutorial by Calum" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/dZfpdNJYZPc" title="Build an NFT Gated Chat App using Polybase | Tutorial by Calum" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+
 
 ## Deployed app