docs: add demo to courseapp README

packages/course-app/README.md

@@ -4,7 +4,7 @@
   <p align="center">
     Create beautiful course websites to educate your customers.
     <br />
-    <a href="https://courseapp.oncws.com">Website</a>  |  <a href="https://dub.sh/ciodiscord">Join Discord community</a>
+    <a href="https://courseapp.oncws.com">Website</a>  |  <a href="https://www.youtube.com/watch?v=P2I2HoyrjVo">Demo</a>
   </p>
 </a>
 
@@ -12,6 +12,8 @@
 
 Create a beautiful course website in seconds with our SvelteKit-powered CLI tool. Choose from multiple templates and customize your content through a simple file structure.
 
+**Demo**: https://www.youtube.com/watch?v=P2I2HoyrjVo
+
 ## Quick Start
 
 ```bash