Update README.md

README.md

@@ -1,7 +1,7 @@
 ---
 language:
 - en
-license: mit
+license: cc-by-nc-sa-4.0
 library_name: transformers
 pipeline_tag: text-generation
 tags:
@@ -130,7 +130,10 @@ We trained on a curated mixture with a strict cleaning pipeline that also remove
 
 ## License
 
-Model weights and code: MIT.
+**Code**: MIT. The modeling code, tokenizer, and training scripts are released under the MIT license.
+
+**Weights**: CC BY-NC-SA 4.0. The training data includes MegaScience (CC BY-NC-SA 4.0), so the weights are released under the same terms: attribution required, non-commercial use only, and derivatives (including fine-tunes) must be shared under the same license.
+
 
 ## Citation