Update README.md

README.md

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-[[Paper](https://arxiv.org/abs/24xx.xxxxx)] [[Code](https://github.com/GreatX3/ProAct)]
+[[Paper](https://arxiv.org/abs/2602.05327)] [[Code](https://github.com/GreatX3/ProAct)]
 [[Project Page](https://github.com/GreatX3/ProAct)]
 </div>
 ## 📖 Introduction