[upd] readmes

README.md

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 # SparK✨: the first successful BERT-style pre-training on any convolutional networks [![arXiv](https://img.shields.io/badge/arXiv-2301.03580-b31b1b.svg)](https://arxiv.org/abs/2301.03580)
 
-This is an official implementation of the paper "Designing BERT for Convolutional Networks: ***Spar***se and Hierarchical Mas***k***ed Modeling". (submitted to [openreview ICLR'23](https://openreview.net/forum?id=NRxydtWup1S) in Oct. 2022)
+This is an official implementation of the paper "Designing BERT for Convolutional Networks: ***Spar***se and Hierarchical Mas***k***ed Modeling". (submitted to [openreview ICLR'23](https://openreview.net/forum?id=NRxydtWup1S) in Sep. 2022)
 
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