update README

README.md

@@ -52,7 +52,7 @@ To create a sufficiently challenging path-planning benchmark, we design a total
 
 ## Citation
 
-If you use **PathEval** for your work, please cite the following paper:
+If you use **PathEval** for your work, please cite our [paper](https://arxiv.org/abs/2411.18711):
 
 ```bibtex
 @inproceedings{aghzal2024evaluating,