Some corrections.

README.md

@@ -147,8 +147,5 @@ with Neural Networks](https://papers.nips.cc/paper/5346-sequence-to-sequence-lea
 * Gong, Hongyu and Bhat, Suma and Wu, Lingfei and Xiong, Jinjun and Hwu, Wen-mei. 2019. [Reinforcement Learning Based Text Style Transfer without Parallel Training Corpus](https://www.aclweb.org/anthology/N19-1320). In *Proceedings of NAACL-HLT 2019*. ([Citation](https://scholar.google.com.hk/scholar?cites=4008944923987714295&as_sdt=2005&sciodt=0,5&hl=en): 1)
 * Luo, Fuli and Li, Peng and Zhou, Jie and Yang, Pengcheng and Chang, Baobao and Sui, Zhifang and Sun, Xu. 2019. [A Dual Reinforcement Learning Framework for Unsupervised Text Style Transfer](https://arxiv.org/pdf/1905.10060). In *Proceedings of IJCAI 2019*. [[code](https://github.com/luofuli/DualRL)] ([Citation](https://scholar.google.com.hk/scholar?cites=3399351837013788481&as_sdt=2005&sciodt=0,5&hl=en): 3)
 * Lee, Joseph and Xie, Ziang and Wang, Cindy and Drach, Max and Jurafsky, Dan and Ng, Andrew Y. 2019. [Neural Text Style Transfer via Denoising and Reranking](https://www.aclweb.org/anthology/W19-2309). In *Proceedings of ACL 2019 Workshop*.
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-* Tian, Youzhi and Hu, Zhiting and Yu, Zhou, 2018.[Structured Content Preservation for Unsupervised Text Style Transfer](https://arxiv.org/pdf/1810.06526.pdf). *arXiv preprint arXiv:1810.06526*. [[code](https://github.com/YouzhiTian/Structured-Content-Preservation-for-Unsupervised-Text-Style-Transfer)] ([Citation](https://scholar.google.com.hk/scholar?cites=11482628433107496292&as_sdt=2005&sciodt=0,5&hl=zh-CN): 2)
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 * Tian, Youzhi and Hu, Zhiting and Yu, Zhou, 2018.[Structured Content Preservation for Unsupervised Text Style Transfer](https://arxiv.org/pdf/1810.06526.pdf). *arXiv preprint arXiv:1810.06526*. [[code](https://github.com/YouzhiTian/Structured-Content-Preservation-for-Unsupervised-Text-Style-Transfer)] ([Citation](https://scholar.google.com.hk/scholar?cites=11482628433107496292&as_sdt=2005&sciodt=0,5&hl=zh-CN): 2)
 * Fu, Zhenxin and Tan, Xiaoye and Peng, Nanyun and Zhao, Dongyan and Yan, Rui. 2018. [Style Transfer in Text: Exploration and Evaluation](https://www.aaai.org/ocs/index.php/AAAI/AAAI18/paper/viewFile/17015/15745). In *Proceedings of AAAI 2018*. [[code](https://github.com/fuzhenxin/text_style_transfer)] ([Citation](https://scholar.google.com.hk/scholar?cites=9103690709456613215&as_sdt=2005&sciodt=0,5&hl=zh-CN): 69)