Update license to CC BY 4.0

README.md

@@ -10,7 +10,7 @@ configs:
   data_files: "leaderboards.parquet"
 tags:
 - code
-license: mit
+license: cc-by-4.0
 ---
 
 # KernelBot Competition Data
@@ -68,6 +68,14 @@ progression = author_progression(df, user_name='username', problem_name='nvfp4_g
 - Competition platform: [gpumode.com](https://gpumode.com)
 - Reference kernels and problem specs: [github.com/gpu-mode/reference-kernels](https://github.com/gpu-mode/reference-kernels)
 
+## License
+
+This dataset is licensed under the [Creative Commons Attribution 4.0 International License (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/).
+
+You are free to share and adapt the material for any purpose, even commercially, provided you give appropriate credit.
+
+**Attribution:** Please cite GPU Mode and link to this dataset. For academic papers, use the citation below.
+
 ## Citation
 
 If you use this dataset in your work, please cite: