Update README.md

add paper citation to use our dataset

README.md

@@ -58,4 +58,17 @@ For each refined protein–ligand complex, **100 decoy poses** were generated us
 - Zhe Jiang (zhe.jiang@ufl.edu)
 - Chenglong Li (lic@ufl.edu)
 - Gustavo Seabra (seabra@cop.ufl.edu)
-- Yanjun Li (yanjun.li@ufl.edu)
+- Yanjun Li (yanjun.li@ufl.edu)
+
+## Citation
+If you use this dataset, please cite our paper:
+
+```bibtex
+@inproceedings{
+zhang2025decoydb,
+title={Decoy{DB}: A Dataset for Graph Contrastive Learning in Protein-Ligand Binding Affinity Prediction},
+author={Yupu Zhang and Zelin Xu and Tingsong Xiao and Gustavo Seabra and Yanjun Li and Chenglong Li and Zhe Jiang},
+booktitle={The Thirty-ninth Annual Conference on Neural Information Processing Systems Datasets and Benchmarks Track},
+year={2025},
+url={https://openreview.net/forum?id=lzLo5bRgQC}
+}