Add pipeline tag and library name

This PR adds the `pipeline_tag` tag, ensuring the model can be found at https://huggingface.co/models?pipeline_tag=text-generation. It also adds the `library_name` tag.

README.md

@@ -1,14 +1,17 @@
 ---
+base_model:
+- deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B
+datasets:
+- thuml/webarena-world-model-cot
 license: mit
 tags:
 - web-agent
 - webarena
 - world-model
-datasets:
-- thuml/webarena-world-model-cot
-base_model:
-- deepseek-ai/DeepSeek-R1-Distill-Qwen-1.5B
+pipeline_tag: text-generation
+library_name: transformers
 ---
+
 See https://github.com/thuml/RLVR-World for examples for using this model.
 
 ## Citation
@@ -19,4 +22,5 @@ See https://github.com/thuml/RLVR-World for examples for using this model.
     author={Jialong Wu and Shaofeng Yin and Ningya Feng and Mingsheng Long},
     journal={arXiv preprint arXiv:2505.13934},
     year={2025},
-}
+}
+```