This PR improves the model card by:
- Linking the model to the research paper [SAMatcher: Co-Visibility Modeling with Segment Anything for Robust Feature Matching](https://huggingface.co/papers/2606.03406).
- Adding the author information and a BibTeX citation.
- Including relevant tags in the metadata to enhance discoverability.
- Organizing the content for better readability, including installation steps from the official repository.
