Hi! I'm Niels from the Hugging Face community team.
This PR adds the `text-classification` pipeline tag to the model card metadata. This ensures the model is correctly categorized on the Hugging Face Hub as a reward model/classifier, making it easier for users to discover.
I've also added a reference to the original paper in the overview section. The rest of the model card (links, evaluation, and usage snippets) looks great!
