Update README.md

README.md

@@ -135,7 +135,7 @@ Document Retrieval, Argument Retrieval for Controversial Questions
 
 ### Citation Information
 
-"""
+```
 @dataset{yamen_ajjour_2020_4139439,
   author       = {Yamen Ajjour and
                   Henning Wachsmuth and
@@ -151,7 +151,7 @@ Document Retrieval, Argument Retrieval for Controversial Questions
   doi          = {10.5281/zenodo.4139439},
   url          = {https://doi.org/10.5281/zenodo.4139439}
 }
-"""
+```
 ### Contributions
 
 Thanks to [@github-username](https://github.com/<github-username>) for adding this dataset.