This pull request enhances the dataset card for SAGE-3D Collision Mesh by:
- Adding `task_categories: ['robotics', 'image-to-3d']` to the YAML metadata for better discoverability.
- Including direct links to the associated paper ([Towards Physically Executable 3D Gaussian for Embodied Navigation](https://huggingface.co/papers/2510.21307)), project page ([https://sage-3d.github.io](https://sage-3d.github.io)), and GitHub repository ([https://github.com/Galery23/SAGE-3D_Official](https://github.com/Galery23/SAGE-3D_Official)) at the top of the README.
- Introducing a "Sample Usage" section, demonstrating how to clone this dataset and integrate its collision meshes into USDA scene files using the `sage3d_usda_builder.py` script from the official GitHub repository, including necessary context for Isaac Sim.
These changes provide more complete information for users and integrate the dataset more effectively within the Hugging Face ecosystem.
