Add dataset card, link to paper, code, task category

This PR ensures the dataset is discoverable with the correct task category and is linked to the paper at https://huggingface.co/papers/2506.00482. It also includes a link to the Github repository.

README.md

@@ -0,0 +1,15 @@
+---
+task_categories:
+- text-generation
+tags:
+- benchmark
+language:
+- en
+---
+
+This repository contains the data presented in [BenchHub: A Unified Benchmark Suite for Holistic and Customizable LLM Evaluation](https://huggingface.co/papers/2506.00482).
+
+BenchHub is a unified benchmark suite designed to help researchers and developers easily load, filter, and process various LLM benchmark datasets. It enables efficient dataset handling for training and evaluation, providing flexible filtering capabilities.
+
+Project page: https://huggingface.co/BenchHub
+Code: https://github.com/rladmstn1714/BenchHub