[Papers] 4 New Papers Using DGL (#2743)

* Update README.md

* Update README.md

README.md

@@ -289,6 +289,14 @@ We are currently in Beta stage.  More features and improvements are coming.
 
 1. [**Adaptive Layout Decomposition with Graph Embedding Neural Networks**](http://www.cse.cuhk.edu.hk/~byu/papers/C98-DAC2020-MPL-Selector.pdf), *Wei Li, Jialu Xia, Yuzhe Ma, Jialu Li, Yibo Lin, Bei Yu*, DAC'20
 
+1. [**Transfer Learning with Graph Neural Networks for Optoelectronic Properties of Conjugated Oligomers**](https://aip.scitation.org/doi/10.1063/5.0037863), J. Chem. Phys. 154, *Chee-Kong Lee, Chengqiang Lu, Yue Yu, Qiming Sun, Chang-Yu Hsieh, Shengyu Zhang, Qi Liu, and  Liang Shi*
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+1. [**Jet tagging in the Lund plane with graph networks**](https://link.springer.com/article/10.1007/JHEP03(2021)052), Journal of High Energy Physics 2021, *Frédéric A. Dreyer and Huilin Qu* 
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+1. [**Global Attention Improves Graph Networks Generalization**](https://arxiv.org/abs/2006.07846), *Omri Puny, Heli Ben-Hamu, and Yaron Lipman*
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+1. [**Learning over Families of Sets -- Hypergraph Representation Learning for Higher Order Tasks**](https://arxiv.org/abs/2101.07773), SDM 2021, *Balasubramaniam Srinivasan, Da Zheng, and George Karypis*
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 </details>
 
 ## Installation