docs: add citation info to README

README.md

@@ -256,4 +256,20 @@ We welcome contributions of all kinds! Whether you have ideas, feature requests,
 
 Follow [OpenMed Org](https://huggingface.co/OpenMed) on Hugging Face 🤗 and click "Watch" to stay updated on our latest releases and developments.
 
+## Citation
+
+If you use this model in your research or applications, please cite the following paper:
+
+```latex
+@misc{panahi2025openmedneropensourcedomainadapted,
+      title={OpenMed NER: Open-Source, Domain-Adapted State-of-the-Art Transformers for Biomedical NER Across 12 Public Datasets},
+      author={Maziyar Panahi},
+      year={2025},
+      eprint={2508.01630},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2508.01630},
+}
+```
 
+Proper citation helps support and acknowledge my work. Thank you!