docs: demo video for readme

Author: ryanlinjui

README.md

@@ -2,14 +2,10 @@
 
 Extract structured menu information from images into JSON using a fine-tuned E2E model or LLM.  
 
-<div align="center">
-
-<img src="./assets/demo.gif" alt="demo" width="500"/><br>
-
-[![Gradio Space Demo](https://img.shields.io/badge/GradioSpace-Demo-important?logo=huggingface)](https://huggingface.co/spaces/ryanlinjui/menu-text-detection)<br>
+[![Gradio Space Demo](https://img.shields.io/badge/GradioSpace-Demo-important?logo=huggingface)](https://huggingface.co/spaces/ryanlinjui/menu-text-detection)
 [![Hugging Face Models & Datasets](https://img.shields.io/badge/HuggingFace-Models_&_Datasets-important?logo=huggingface)](https://huggingface.co/collections/ryanlinjui/menu-text-detection-670ccf527626bb004bbfb39b)
 
-</div>
+https://github.com/user-attachments/assets/80e5d54c-f2c8-4593-ad9b-499e5b71d8f6
 
 ## 🚀 Features
 ### Overview