Kwai-Keye/Thyme-RL · Add `transformers` library tag, model card title, and sample usage

This PR significantly improves the model card for the Thyme: Think Beyond Images model by:

Adding library_name: transformers to the metadata: This tag enables the automated "how to use" widget on the Hugging Face Hub, providing users with a quick start guide. Evidence for transformers compatibility comes from the pip install "transformers<4.55" dependency listed in the GitHub README's Environment Setup and the Qwen2_5_VLProcessor and Qwen2_5_VLForConditionalGeneration classes indicated in the model's configuration files.
Adding a prominent model card title: The title # Thyme: Think Beyond Images is added at the top for better readability and clear identification of the model.
Including a Usage section with a transformers code snippet: This provides a practical, runnable example for users to quickly get started with inference using the transformers library, reinforcing the library_name tag.
Updating the BibTeX citation: The citation in the "Citation" section has been updated to the more complete version found in the official GitHub repository, including all authors and relevant arXiv details.

The existing links to the project page, GitHub repository, and arXiv paper (under "Technique Report") remain unchanged, as per the guidelines regarding pre-existing arXiv links.