Update citation

README.md

@@ -57,9 +57,12 @@ If you find this work useful, please cite:
 ```bibtex
 @article{lpnsr2026,
   title={LPNSR: Prior-Enhanced Diffusion Image Super-Resolution via LR-Guided Noise Prediction},
-  author={[]},
+  author={Huang, Shuwei and Liu, Shizhuo and Wei, Zijun},
   journal={arXiv preprint arXiv:2603.21045},
-  year={2026}
+  year={2026},
+  eprint={2603.21045},
+  archivePrefix={arXiv},
+  primaryClass={cs.CV}
 }
 ```