feat: add arXiv badge with logo to header links

README.md

@@ -16,7 +16,7 @@ tags:
   <h3>
     📄 <a href="https://openreview.net/pdf?id=T2Oihh7zN8">Paper</a>
     &nbsp;&nbsp;
-    📝 <a href="http://arxiv.org/abs/2604.21450">arXiv</a>
+    <a href="http://arxiv.org/abs/2604.21450"><img src="https://img.shields.io/badge/arXiv-2604.21450-b31b1b.svg" alt="arXiv"></a>
     &nbsp;&nbsp;
     🏠 <a href="https://eternalevan.github.io/VARestorer-project/">Project Page</a>
     &nbsp;&nbsp;
@@ -106,7 +106,7 @@ For the latest updates, issue tracking, and future development, please refer to
 ## Links
 
 - [Paper (OpenReview)](https://openreview.net/forum?id=T2Oihh7zN8)
-- [arXiv](http://arxiv.org/abs/2604.21450)
+- [![arXiv](https://img.shields.io/badge/arXiv-2604.21450-b31b1b.svg)](http://arxiv.org/abs/2604.21450)
 - [Project Page](https://eternalevan.github.io/VARestorer-project/)
 - [Code Repository](https://github.com/EternalEvan/VARestorer)