Update README.md

Please cite the following paper if you use our dataset :)

```
@inproceedings{havaldar-etal-2023-comparing,
title = "Comparing Styles across Languages",
author = "Havaldar, Shreya and Pressimone, Matthew and Wong, Eric and Ungar, Lyle",
booktitle = "Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing",
year = "2023",
address = "Singapore",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2023.emnlp-main.419",
}
```

README.md

@@ -24,4 +24,5 @@ dataset_info:
 ---
 # Dataset Card for "multilingual_politeness"
 
+
 [More Information needed](https://github.com/huggingface/datasets/blob/main/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)