Style fix

README.md

@@ -27,6 +27,7 @@ The tweets were annotated as follows:
 - 3 if the sentiment of the tweet is neutral
 
 ## Citation
+```
 @inproceedings{schmidt-etal-2022-sentiment,
     title = "Sentiment Analysis on {T}witter for the Major {G}erman Parties during the 2021 {G}erman Federal Election",
     author = "Schmidt, Thomas  and
@@ -46,4 +47,5 @@ The tweets were annotated as follows:
     publisher = "KONVENS 2022 Organizers",
     url = "https://aclanthology.org/2022.konvens-1.9",
     pages = "74--87",
-}
+}
+```