Add paper abstract and BibTeX citation
This PR improves the model card for IC-Custom by adding the paper's abstract and a BibTeX citation.
The abstract provides a comprehensive overview of the model's purpose, methodology, and results, making the model card more informative. The BibTeX citation ensures that researchers can easily and correctly cite the associated paper.
No library_name was added to the metadata as there was no explicit evidence from the provided config.json or the (unavailable) GitHub README to confirm compatibility with a specific library, adhering to the guidelines. The existing arXiv paper link in the badges was kept as per instructions, which state not to replace it with a Hugging Face Papers link if an arXiv link is already present. Sample usage was not included as the GitHub README content, which would be the source of evidence, could not be fetched.