Update README.md

README.md

@@ -5,4 +5,14 @@ This is the model of __PolyNC__ from the paper entitled as _"PolyNC: a natural a
 
 You can perform some the demos with huggingface API in the box on the right side, such as try this: _Predict the Tg of the following SMILES: c1cc(Oc2ccc(Oc3ccc(-n4c(=O)c5cc6c(c(=O)n()c6=O)cc5c4=O)cc3)cc2)ccc1_ or _Predict the heat resistance class of the following SMILES: c1cc(Oc2ccc(Oc3ccc(-n4c(=O)c5cc6c(c(=O)n()c6=O)cc5c4=O)cc3)cc2)ccc1_. Just enjoy it!
 
-Since the development of polymers is an issue of concern to polymer scientists, in order to facilitate everyone's use, we are developing a [Hugging Face playground](https://huggingface.co/spaces/hkqiu/AI4P) for PolyNC so that it can be used without local deployment. Stay tuned!🤗
+# Cite this:
+```@Article{D3SC05079C,
+author ="Qiu, Haoke and Liu, Lunyang and Qiu, Xuepeng and Dai, Xuemin and Ji, Xiangling and Sun, Zhao-Yan",
+title  ="PolyNC: a natural and chemical language model for unified polymer properties prediction",
+journal  ="Chem. Sci.",
+year  ="2023",
+pages  ="-",
+publisher  ="The Royal Society of Chemistry",
+doi  ="10.1039/D3SC05079C",
+url  ="http://dx.doi.org/10.1039/D3SC05079C"
+}