added citation

README.md

@@ -100,7 +100,14 @@ This work is licensed under a <a rel="license" href="https://creativecommons.org
 If you use any of these resources (datasets or models) in your work, please cite our latest preprint:
 
 ```bibtex
-
+@misc{degibert2022sequencetosequence,
+      title={Sequence-to-Sequence Resources for Catalan}, 
+      author={Ona de Gibert and Ksenia Kharitonova and Blanca Calvo Figueras and Jordi Armengol-Estapé and Maite Melero},
+      year={2022},
+      eprint={2202.06871},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
 ```
 
 [DOI]()