Update app.py

app.py

@@ -173,7 +173,7 @@ def build_leaderboard_tab(leaderboard_table_file_en, leaderboard_table_file_cn,
         model_table_df_cn = pd.DataFrame(data_cn)
         md_head = f"""
         # 🏆 OCRBench v2 Leaderboard
-        | [GitHub](https://github.com/Yuliang-Liu/MultimodalOCR) |
+        | [GitHub](https://github.com/Yuliang-Liu/MultimodalOCR) | [Paper](https://arxiv.org/abs/2501.00321v1) |
         """
         gr.Markdown(md_head, elem_id="leaderboard_markdown")
         with gr.Tabs() as tabs: