Update readme

README.md

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     <img src="images/youtu_embedding.png" width="400"/>
 <p>
 
-<div align="center">
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-[![GitHub](https://img.shields.io/badge/GitHub-Tencent-blue.svg)](https://github.com/TencentCloudADP/youtu-embedding)
-[![Huggingface](https://img.shields.io/badge/Huggingface-YoutuRAG-blue)](https://huggingface.co/tencent/Youtu-Embedding)
-[![WeChat Community](https://img.shields.io/badge/Community-WeChat-32CD32)](images/wechat_qr.png)
-[![Discord Community](https://img.shields.io/badge/Community-Discord-8A2BE2)](https://discord.gg/QjqhkHQVVM)
-
-</div>
+<p align="center">
+    🤗&nbsp;<a href="https://huggingface.co/tencent/Youtu-Embedding"><b>Hugging Face</b></a>&nbsp;&nbsp;|&nbsp;&nbsp;
+    🖥️&nbsp;<a href="https://github.com/TencentCloudADP/youtu-embedding"><b>GitHub</b></a>&nbsp;&nbsp;|&nbsp;&nbsp;
+    🌎&nbsp;<a href="https://arxiv.org/abs/2508.11442"><b>Technical Report</b></a>
+</p>
+<p align="center">
+    💬&nbsp;<a href="https://huggingface.co/tencent/Youtu-Embedding/blob/main/images/wechat_qr.png"><b>WeChat</b></a>&nbsp;&nbsp;|&nbsp;&nbsp;
+    🤖&nbsp;<a href="https://discord.gg/QjqhkHQVVM"><b>Discord</b></a>
+</p>
 
 ## 🎯 Introduction