Update README.md

README.md

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 ## BERT Miniatures
 
-This is the tiny version of the 24 BERT models referenced in Well-Read Students Learn Better: On the Importance of Pre-training Compact Models (English only, uncased, trained with WordPiece masking).
+This is the tiny version of the 24 BERT models referenced in [Well-Read Students Learn Better: On the Importance of Pre-training Compact Models](https://arxiv.org/abs/1908.08962) (English only, uncased, trained with WordPiece masking).
 
 This checkpoint is the original TinyBert Optimized Uncased English:
 [TinyBert](https://huggingface.co/google/bert_uncased_L-2_H-128_A-2)