Add Croissant RAI metadata

README.md

@@ -28,7 +28,7 @@ The result is a benchmark where rewards are tied to end-state business correctne
 
 ## Responsible AI Metadata
 
-Croissant RAI metadata is provided in `croissant_rai.json`. It declares conformance to `http://mlcommons.org/croissant/RAI/1.0` and documents data collection, intended uses, limitations, known biases, sensitive-information handling, and release maintenance.
+Extended Croissant metadata is provided in `croissant.json`. It preserves the Hugging Face dataset identity and adds Croissant RAI fields for data collection, intended uses, limitations, known biases, sensitive-information handling, social impact, and release maintenance. The RAI-only overlay is also available in `croissant_rai.json`.
 
 ## What Is Included