Add citation (#7)

- Add citation (0054acbebce907573c691c5a3bc6ffc6fecdb2b1)

README.md

@@ -55,6 +55,19 @@ The dataset contains 100 questions, each having their answer in 1 of the 90 arti
 
 https://www.syntec.fr/
 
+### Citation
+If you use this dataset in your work, please consider citing:
+```
+@misc{ciancone2024extending,
+      title={Extending the Massive Text Embedding Benchmark to French}, 
+      author={Mathieu Ciancone and Imene Kerboua and Marion Schaeffer and Wissam Siblini},
+      year={2024},
+      eprint={2405.20468},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
+```
+
 ### Contact
 
 mathieu@wikit.ai