Update pubs.bib

_bibliography/pubs.bib

@@ -86,7 +86,7 @@ @inproceedings{wang2024negativeprompt
   title={NegativePrompt: Leveraging Psychology for Large Language Models Enhancement via Negative Emotional Stimuli},
   author={Wang, Xu and Li, Cheng and Chang, Yi and Wang, Jindong and Wu, Yuan},
   booktitle={International Joint Conference on Artificial Intelligence (IJCAI)},
-  arxiv={https://arxiv.org/abs/2405.02814}
+  arxiv={https://arxiv.org/abs/2405.02814},
   year={2024}
 }