Update README.md

README.md

@@ -103,13 +103,13 @@ Yi-Ko series models are an auto-regressive language model that uses an optimized
 | - haerae_standard_nomenclature|      1|none  |     5|acc     |0.8301|±  |0.0305|
 |                               |       |none  |     5|acc_norm|0.8301|±  |0.0305|
 
-## LICENSE
-
-Apache 2.0
 
-## Citation
+## LICENSE
 
+Apache 2.0 (for research)
 
+> For commercial purpose,
+> mailto: jun@beomi.net to acquire Yi-Ko sereis commercial license.
 
 ## Acknowledgement