Update README.md

README.md

@@ -37,13 +37,13 @@ The English texts were machine translated back into German. This is how the para
 
 ## Citations & Acknowledgements
 
-### OpenSubtitles
+OpenSubtitles\
 P. Lison and J. Tiedemann, 2016, [OpenSubtitles2016: Extracting Large Parallel Corpora from Movie and TV Subtitles](http://www.lrec-conf.org/proceedings/lrec2016/pdf/947_Paper.pdf). In Proceedings of the 10th International Conference on Language Resources and Evaluation (LREC 2016) - also see [http://www.opensubtitles.org/](http://www.opensubtitles.org/)
 
-### WikiMatrix v1
+WikiMatrix v1\
 Holger Schwenk, Vishrav Chaudhary, Shuo Sun, Hongyu Gong and Paco Guzman, [WikiMatrix: Mining 135M Parallel Sentences in 1620 Language Pairs from Wikipedia](https://arxiv.org/abs/1907.05791), arXiv, July 11 2019
 
-### Tatoeba v2022-03-03
+Tatoeba v2022-03-03\
 J. Tiedemann, 2012, [Parallel Data, Tools and Interfaces in OPUS](https://opus.nlpl.eu/Tatoeba-v2022-03-03.php). In Proceedings of the 8th International Conference on Language Resources and Evaluation (LREC 2012)
 
 ## Licensing