This PR significantly improves the model card for HunyuanImage-3.0 by:
- Adding `library_name: transformers` to the metadata, which will enable the automated "how to use" widget on the model page. Evidence for this is clearly present in the "Quick Start with Transformers" section of the model card.
- Updating the "Report" badge to point to the arXiv paper link (`https://arxiv.org/pdf/2509.23951`), resolving the "come soon" placeholder.
- Adding explicit Markdown links to the official Hugging Face paper page, the project page, and the GitHub repository in the introductory section for improved clarity and navigation.
Please review and merge if these updates align with the recommended best practices.
