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README.md

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 # TrelBERT
 
 TrelBERT is a BERT-based Language Model trained on Polish Twitter.
-It uses Masked Language Model objective. It is based on [HerBERT](https://arxiv.org/abs/2105.01735) model and therefore released under the same license - CC BY 4.0.
+It uses Masked Language Model objective. It is based on [HerBERT](https://aclanthology.org/2021.bsnlp-1.1) model and therefore released under the same license - CC BY 4.0.
 
 ## Training