This PR improves the model card for TL-CodeLLaMA-2 by:
- Adding the `library_name: transformers` to enable the "How to use" widget and ensure automated code snippets work correctly.
- Adding the `pipeline_tag: text-generation` to improve model discoverability on the Hugging Face Hub (e.g., at https://huggingface.co/models?pipeline_tag=text-generation).
- Including a direct link to the GitHub repository for easier access to the code.
Please review and merge if these improvements are acceptable!