Update README.md

README.md

@@ -36,6 +36,6 @@ last_hidden_states = outputs[0] # The last hidden-state is the first element of
 Otherwise you will decrease the performance due to the [UNK] tokens.
 
 
-#### Acknowledgements
+# Acknowledgements
 
 We'd like to thank [TPU Research Cloud](https://sites.research.google/trc/about/) for helping us out with the TPU compute power needed to pretrain RoBERTweet models.