citation updated

README.md

@@ -10,15 +10,19 @@ The codes for pretraining and finetuning on downstream tasks are shared on [GitH
 If you find this useful in your research, please consider citing:
 ```
 @article{gupta_matscibert_2022,
-  title = {{{MatSciBERT}}: {{A}} Materials Domain Language Model for Text Mining and Information Extraction},
-  author = {Gupta, Tanishq and Zaki, Mohd and Krishnan, N. M. Anoop and {Mausam}},
-  year = {2022},
-  month = may,
-  journal = {npj Computational Materials},
-  volume = {8},
-  number = {1},
-  pages = {102},
-  issn = {2057-3960},
-  doi = {10.1038/s41524-022-00784-w}
+  title   = "{MatSciBERT}: A Materials Domain Language Model for Text Mining and Information Extraction",
+  author  = "Gupta, Tanishq and 
+            Zaki, Mohd and 
+            Krishnan, N. M. Anoop and 
+            Mausam",
+  year    = "2022",
+  month   = may,
+  journal = "npj Computational Materials",
+  volume  = "8",
+  number  = "1",
+  pages   = "102",
+  issn    = "2057-3960",
+  url     = "https://www.nature.com/articles/s41524-022-00784-w",
+  doi     = "10.1038/s41524-022-00784-w"
 }
 ```