Update build-an-avatar-generator-with-html-css-js.mdx

Author: sonnynomnom

projects/build-an-avatar-generator-with-html-css-js/build-an-avatar-generator-with-html-css-js.mdx

@@ -319,6 +319,10 @@ Congrats! You've built your own generator! Now you're equipped with the skills t
 
 P.S. Are you waiting for an Avatar Builder on Codédex? Keep an eye out!
 
+### Project Walkthrough
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/mP_QIULA0bY?si=K1okYKmKvIDd-0Rj" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
 ### Additional Resources
 
 - [90's Fashion Nova Holiday Hackathon Project by Ciera](https://www.codedex.io/community/hackathon/OSlnGKjR7MWDaIRgvNdD)