Update README.md

edited the authors to reflect the upcoming update of the paper

README.md

@@ -71,7 +71,7 @@ The left figure shows inference times (using torch > 2.0), whereas the right fig
 
       @misc{pernias2023wuerstchen,
             title={Wuerstchen: Efficient Pretraining of Text-to-Image Models}, 
-            author={Pablo Pernias and Dominic Rampas and Marc Aubreville},
+            author={Pablo Pernias and Dominic Rampas and Mats L. Richter and Christopher Pal and Marc Aubreville},
             year={2023},
             eprint={2306.00637},
             archivePrefix={arXiv},