Update app.py

app.py

@@ -345,7 +345,7 @@ Here's what you can do:
 
 Empower your investment strategy with cutting-edge financial APIs and visualization tools. <br>Start making informed decisions to elevate your financial future today.
 <br><br>
-Demo video: <a href="https://www.youtube.com/watch?v=7MuQ4G6tq_I">Investment Portfolio Management App - Demo</a>
+Demo video: <a href="https://www.youtube.com/watch?v=7MuQ4G6tq_I">PortfolioPro - Demo</a>
 <br><br>
 Kaggle Notebook: <a href="https://www.kaggle.com/code/lusfernandotorres/building-an-investment-portfolio-management-app">Building an Investment Portfolio Management App 💰 - by @lusfernandotorres</a>
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