Update README.md

README.md

@@ -1447,10 +1447,14 @@ You can finetune this model on your own dataset.
 
 #### ColBERT-Zero
 ```bibtex
-@misc{chaffin2026colbertzero,
-  title  = {ColBERT-Zero: To Pretrain Or Not To Pretrain ColBERT models},
-  author = {Chaffin, Antoine and Arnaboldi, Luca and Chatelain, Amélie and Krzakala, Florent},
-  year   = {2026},
+@misc{chaffin2026colbertzeropretrainpretraincolbert,
+  title         = {ColBERT-Zero: To Pre-train Or Not To Pre-train ColBERT models}, 
+  author        = {Antoine Chaffin and Luca Arnaboldi and Amélie Chatelain and Florent Krzakala},
+  year          = {2026},
+  eprint        = {2602.16609},
+  archivePrefix = {arXiv},
+  primaryClass  = {cs.CL},
+  url           = {https://arxiv.org/abs/2602.16609}, 
 }
 ```
 #### Sentence Transformers