Add citation info

README.md

@@ -50,3 +50,17 @@ Overall EstBERT performs better in parts of speech (POS), name entity recognitio
 | EstBERT      | **88.42**    | 90.38                     |**_89.39_** | 88.35                     | 89.74      | 89.04         |
 | mBERT        | 85.88         | 87.09                     | 86.51                     |**_88.47_** | 88.28      | 88.37         |
 | XLM\-RoBERTa | 87.55         |**_91.19_** | 89.34                     | 87.50                     | **90.76** | **89.10**    |
+
+
+## BibTeX entry and citation info
+
+```
+@misc{tanvir2020estbert,
+      title={EstBERT: A Pretrained Language-Specific BERT for Estonian}, 
+      author={Hasan Tanvir and Claudia Kittask and Kairit Sirts},
+      year={2020},
+      eprint={2011.04784},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
+```