Update README.md

README.md

@@ -201,7 +201,7 @@ Users (both direct and downstream) should be made aware of the risks, biases and
       author={Musashi Hinck and Matthew L. Olson and David Cobbley and Shao-Yen Tseng and Vasudev Lal},
       year={2024},
       eprint={2404.01331},
-      url={https://arxiv.org/abs/2404.01331}
+      url={https://arxiv.org/abs/2404.01331},
       archivePrefix={arXiv},
       primaryClass={cs.CL}
 }