Add pipeline_tag and library_name to model card

This PR enhances the model card by adding the `pipeline_tag: text-generation` and `library_name: transformers` to the metadata section.

- The `pipeline_tag` (text-generation) improves the model's discoverability on the Hugging Face Hub, as it aligns with the model's primary tasks of code generation, math problem solving, and planning.
- The `library_name` (transformers) enables the automated "How to use" widget on the model page, providing users with predefined code snippets for easy integration and inference, based on the model's compatibility with the `transformers` library as evidenced by its `config.json`.

Please review and merge this PR if everything looks good.

README.md

@@ -1,7 +1,7 @@
 ---
-license: apache-2.0
 language:
 - en
+license: apache-2.0
 tags:
 - reinforcement-learning
 - code-generation
@@ -10,6 +10,8 @@ tags:
 - llada
 size_categories:
 - 8B
+pipeline_tag: text-generation
+library_name: transformers
 ---
 
 # LLaDA-8B-BGPO-code
@@ -47,5 +49,4 @@ size_categories:
 
 - Primarily designed for code generation tasks.
 - Performance may vary on other tasks.
-- Requires appropriate computational resources for inference.
-
+- Requires appropriate computational resources for inference.