docs: license metadata reflects the Gemma Terms of Use

README.md

@@ -1,5 +1,7 @@
 ---
-license: apache-2.0
+license: other
+license_name: gemma-terms-of-use
+license_link: https://ai.google.dev/gemma/terms
 pipeline_tag: robotics
 tags: [robotics, vla, openpi, manipulation, maniguard, franka]
 ---
@@ -28,3 +30,12 @@ A ManiGuard fine-tuned VLA checkpoint (openpi).
   url           = {https://arxiv.org/abs/2608.17386},
 }
 ```
+
+## License
+
+The fine-tuned weights derive from a Physical Intelligence openpi base model whose
+VLM backbone is PaliGemma; use of these weights is therefore subject to the
+[Gemma Terms of Use](https://ai.google.dev/gemma/terms) (including the
+[Gemma Prohibited Use Policy](https://ai.google.dev/gemma/prohibited_use_policy)),
+which downstream users must pass on. The openpi training code and ManiGuard's own
+contributions are Apache-2.0.