This PR adds a comprehensive model card for OCRVerse, including:
- Metadata for `pipeline_tag`, `library_name`, and `license`.
- Links to the [paper](https://huggingface.co/papers/2601.21639) and the official [GitHub repository](https://github.com/DocTron-hub/OCRVerse).
- A description of the model's capabilities in holistic OCR.
- Sample usage code for document parsing using the `transformers` library.
