Update README.md

README.md

@@ -46,9 +46,11 @@ We formulate this as a classification task where we predict the identity of the
 
 ## Citation Information
 
+```
 @article{townshend2020atom3d,
   title={Atom3d: Tasks on molecules in three dimensions},
   author={Townshend, Raphael JL and V{\"o}gele, Martin and Suriana, Patricia and Derry, Alexander and Powers, Alexander and Laloudakis, Yianni and Balachandar, Sidhika and Jing, Bowen and Anderson, Brandon and Eismann, Stephan and others},
   journal={arXiv preprint arXiv:2012.04035},
   year={2020}
-}
+}
+```