Apply contributor-approved CC BY 4.0 terms to Stanford dataset card

stanford-murine/README.md

@@ -1,5 +1,5 @@
 ---
-license: apache-2.0
+license: cc-by-4.0
 pretty_name: Stanford Murine Liver and Sound-Speed Phantom Ultrasound
 task_categories:
 - image-to-image
@@ -53,15 +53,15 @@ Stanford University. Contact: `jjdahl@stanford.edu`.
 
 ## License / Terms of Use
 
-The source Figshare records and this converted dataset are distributed under
-the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Both
-Figshare records state that the files may be publicly distributed under the
-selected license.
+This OpenH-RF dataset is distributed under the
+[Creative Commons Attribution 4.0 International License (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/),
+with contributor approval for the OpenH-RF submission.
 
-The OpenH-RF evaluation template currently names CC BY 4.0 as its expected
-license. This data card preserves the verified upstream Apache 2.0 declaration;
-changing the dataset license would require confirmation from the contributors
-and Stanford rather than a documentation-only edit.
+The original Figshare releases were published under the
+[Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).
+The CC BY 4.0 terms apply to this OpenH-RF release; this does not change the
+license declarations on the original Figshare records. Please retain the
+research attribution and citations provided in this card.
 
 ## Intended Usage