Update README.md

README.md

@@ -15,12 +15,12 @@ configs:
   data_files:
   - split: test
     path: aime2026.jsonl
-license: cc-by-4.0
+license: apache-2.0
 ---
 
 # AIME 26
 
-[![License: CC-BY-4.0](https://img.shields.io/badge/License-CC_BY_4.0-yellow.svg)](https://creativecommons.org/licenses/by/4.0) 
+[![License: Apache 2.0](https://img.shields.io/badge/License-Apache_2.0-yellow.svg)](https://opensource.org/license/apache-2-0) 
 [![AIME26 Dataset](https://img.shields.io/badge/Huggingface-Datasets-blue)](https://huggingface.co/datasets/math-ai/aime26) 
 
 ### American Invitational Mathematics Examination (AIME) 2026