docs: Fix demo video link in README.md

Updated demo video link in README.

Author: HideBa

README.md

@@ -4,7 +4,9 @@ An MCP (Model Context Protocol) server that provides AI assistants with structur
 
 ## 📺 Demo
 
-<video src="https://storage.googleapis.com/cityjson/others/ci-mcp-demo.mp4" controls width="100%"></video>
+
+https://github.com/user-attachments/assets/91f0bd61-a313-441c-8def-4e07b8d125be
+
 
 ## 🚀 Quick Start