Add pipeline tag, library_name and project page link

This PR adds the appropriate pipeline tag, ensuring the model can be found at https://huggingface.co/models?pipeline_tag=robotics.
It also lists the appropriate library at the top right and adds a link to the project page.

README.md

@@ -5,8 +5,11 @@ tags:
 - rt1
 - tokenizer
 - visual-tokenizer
+pipeline_tag: robotics
+library_name: diffusers
 ---
 
+See https://thuml.github.io/RLVR-World for examples for using this model.
 See https://github.com/thuml/RLVR-World for examples for using this model.
 
 ## Citation