Add link to paper and tags to BenchMAX_Model-based dataset card

This PR links the dataset to https://huggingface.co/papers/2502.07346 and adds appropriate tags to the dataset.

README.md

@@ -59,11 +59,15 @@ configs:
   data_files: arenahard_hu.jsonl
 - config_name: sr
   data_files: arenahard_sr.jsonl
+tags:
+- multilingual
+- instruction-following
 ---
+
 ## Dataset Sources
 
 - **Paper**: BenchMAX: A Comprehensive Multilingual Evaluation Suite for Large Language Models
-- **Link**: https://arxiv.org/pdf/2502.07346
+- **Link**: https://huggingface.co/papers/2502.07346
 - **Repository**: https://github.com/CONE-MT/BenchMAX
 
 ## Dataset Description