📝 Add gif about mcp

Author: OpenWaygate

README.md

@@ -21,6 +21,8 @@
 
 `yutu` is a fully functional MCP server and CLI for YouTube to automate your YouTube workflows. It can manipulate almost all YouTube resources, like videos, playlists, channels, comments, captions, and more.
 
+[![mcp demo](./asset/mcp-demo.gif)](https://asciinema.org/a/9fwmYAMiGKV3HSJxNPAs6zCX6)
+
 ## Table of Contents
 
 - [Prerequisites](#prerequisites)