Update README.md

Author: terryyz

README.md

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     <h2>🎉 Check out our latest work!<br>
-    <a href="https://swe-arena.com">🌟 SWE Arena 🌟</a><br>
-    <strong>🚀 Open Evaluation Platform on AI for Software Engineering 🚀<br>
+    <a href="https://arxiv.org/abs/2510.08697">🌟 BigCodeArena 🌟</a><br>
+    <strong>🚀 Open Evaluation Platform on AI for Vibe Coding 🚀<br>
     ✨ 100% free to use the latest frontier models! ✨</strong></h2>
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