Set license to MIT

README.md

@@ -1,5 +1,5 @@
 ---
-license: cc-by-nc-sa-4.0
+license: mit
 language:
 - bn
 - en
@@ -66,9 +66,9 @@ This is an E5-family model: prefix queries with `query: ` and passages with `pas
 
 Three-stage curriculum (AdamW, cosine schedule, bf16). Distillation over ~18.7M EN–BN parallel
 pairs; supervised contrastive fine-tuning (MNR) on ~2.45M pairs (Bangla-native core + SWIM-IR +
-machine-translated MS MARCO-bn); NLI triplet polish (XNLI-bn). Some training sources carry
-non-commercial terms, so the model is released **CC BY-NC-SA 4.0 for research use** — verify
-upstream terms before commercial deployment.
+machine-translated MS MARCO-bn); NLI triplet polish (XNLI-bn). Released under the **MIT license**.
+Note that some training sources carry their own (in some cases non-commercial) terms — verify
+upstream data terms before commercial deployment.
 
 ## Limitations