Update index.html

Author: riverfor

docs/index.html

@@ -119,6 +119,7 @@ <h4><img src="static/ic_new@2x.png" width="19px"> What's NEW</h4>
 						<div class="index-more-item">
 							<h4><img src="static/ic_community@2x.png" width="19px"> QPython Courses</h4>
 							<p>- <a href='https://youtu.be/LL4DE98h2uQ?si=P3fIPYS_UmHNckpP' target='_blank'>Practice Generative AI development within QPython (Video)</a> <br />
+								- <a href="https://www.youtube.com/watch?v=0Zf9kbFruXQ">Create a Flask web application in QPython</a><br />
 								- <a href="https://youtu.be/0ptFeZzaQqgP" target="_blank">Example of AI Agent developing a stock trading robot </a> <br />
 								- <a href="https://www.youtube.com/watch?v=fb_DVMdHfSE&list=PLoqGKGzSZw0dPCrpVnoKxbKo0Ceemg5nC" target="_blank">QPython tutorials created by enthusiastic internet users</a> <br />
 								- <a href="https://www.youtube.com/watch?v=HqfUUiftrRw" target="_blank">QPython - Code Anywhere，Study Anytime</a>