Update README.md

README.md

@@ -37,8 +37,10 @@ For more information about this issue, please refer to our survey paper:
 ## Training dataset
 The following information is based on the information we could gather, that is, it is NOT official.
 Please take it with a pinch of salt as we continue to study Modello Italia.
+* **The training data of Modello Italia is unknown;**
 * Modello Italia is probably trained on around 1T tokens of Italian text;
-* **The training data of Modello Italia is unknown.**
+* We know that the training data is mostly Italian text and source code;
+* We know that the training data includes text from Editoria Nazionale.
 
 ## Tokenizer
 The following information is based on the information we could gather, that is, it is NOT official.