update readme

Author: Hj-G

README.md

@@ -10,7 +10,7 @@ A unified evaluation toolkit and leaderboard for rigorously assessing the scient
 
 [![Tutorial](https://img.shields.io/badge/Tutorial-SciEval-b8dcff?style=for-the-badge&logo=google-chrome&logoColor=white)](https://scievalkit-docs.readthedocs.io/en/latest) 
 [![Leaderboard](https://img.shields.io/badge/LEADERBOARD-Scieval-f6e58d?style=for-the-badge&logo=huggingface)](https://opencompass.org.cn/Intern-Discovery-Eval/rank) 
-[![Report](https://img.shields.io/badge/REPORT-Technical-f4c2d7?style=for-the-badge)](https://arxiv.org/abs/2512.22334) 
+[![Report](https://img.shields.io/badge/REPORT-Technical-f4c2d7?style=for-the-badge&logo=arxiv)](https://arxiv.org/abs/2512.22334) 
 [![GitHub](https://img.shields.io/badge/GitHub-Repository-c7b9e2?style=for-the-badge&logo=github&logoColor=white)](https://github.com/InternScience/SciEvalKit)
 
 <img src="assets/icon/welcome.png" alt="welcome" height="24" style="vertical-align:middle;" />