add "link to paper coming soon" to readme

README.md

@@ -13,7 +13,7 @@ To train Aleph-Alpha-GermanWeb-Grammar-Classifier-fastText, we used [LanguageToo
 
 We trained Aleph-Alpha-GermanWeb-Grammar-Classifier-fastText on 95\% of the data to classify the high and low quality examples -- and used the remaining 5\% for validation, reaching a precision of 63\% and recall of 63\% on the validation set.
 
-Further details can be found in our [accompanying paper](arXiv link).
+Further details can be found in our accompanying paper (link to paper coming soon).
 
 ## Example Snippet