Update README with user attachments link

Added a link to user attachments in the README.

Author: CodeBoy2006

README.md

@@ -8,6 +8,10 @@
   <img alt="license" src="https://img.shields.io/badge/license-MIT-black">
 </p>
 
+
+https://github.com/user-attachments/assets/d4be5f3d-c178-4c22-b32e-7b52af324da2
+
+
 ![首页](docs/images/home.webp)
 
 TiO₂ 是一个静态博客框架，为长文与结构化知识而作。