Update README.md

README.md

@@ -237,4 +237,18 @@ Supported languages:
 | Kazakh            | kk      | 哈萨克语        |
 | Mongolian         | mn      | 蒙古语          |
 | Uyghur            | ug      | 维吾尔语        |
-| Cantonese         | yue     | 粤语            |
+| Cantonese         | yue     | 粤语            |
+
+Citing HY-MT1.5:
+
+```bibtex
+@misc{hy-mt1.5,
+      title={HY-MT1.5 Technical Report}, 
+      author={Mao Zheng and Zheng Li and Tao Chen and Mingyang Song and Di Wang},
+      year={2025},
+      eprint={2512.24092},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2512.24092}, 
+}
+```