Update README.md

README.md

@@ -139,6 +139,15 @@ We're looking for collaborators and plan to expand the model's capabilities to i
 ## References
 
 ```bibtex
+@misc{dao2025alphamazeenhancinglargelanguage,
+      title={AlphaMaze: Enhancing Large Language Models' Spatial Intelligence via GRPO}, 
+      author={Alan Dao and Dinh Bach Vu},
+      year={2025},
+      eprint={2502.14669},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2502.14669}, 
+}
 ```
 
 ## Acknowledgement