Update README.md

README.md

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 This model is the official open-source implementation of **[ProGuard: Towards Proactive Multimodal Safeguard](https://arxiv.org/abs/2512.23573)**. For deployment instructions, please refer to **[this link](https://github.com/yushaohan/ProGuard/tree/master/deploy)**.
+
+If you find this model helpful, please cite our paper 🤗
+
+```
+@article{yu2025proguard,
+  title={ProGuard: Towards Proactive Multimodal Safeguard},
+  author={Yu, Shaohan and Li, Lijun and Si, Chenyang and Sheng, Lu and Shao, Jing},
+  journal={arXiv preprint arXiv:2512.23573},
+  year={2025},
+  url={https://yushaohan.github.io/ProGuard/}
+}
+```
+