This PR enhances the model card by:
* Adding the `pipeline_tag: text-generation` to ensure the model appears under the relevant task filter on the Hugging Face Hub (https://huggingface.co/models?pipeline_tag=text-generation).
* Adding the `library_name: transformers` metadata, which enables the "How to use" widget on the model page.
* Including the project page URL for easier navigation to related resources.