Update README.md

README.md

@@ -443,6 +443,7 @@ These are the main differences relative to the original T5 architecture:
 - Shared Input-Output Embeddings
 - No biases
 - Bidirectional attention
+- Layer Norm with `center_scale_at_zero` and final layer with `use_scale=False`
 
 If you are looking for the language models models, here are the available versions:
 - [3B](https://huggingface.co/jbochi/madlad400-3b-mt)