Add link to paper

This PR makes your dataset visible at https://huggingface.co/papers/2406.16321 (feel free to claim the paper as author which makes it appear at your profile).

README.md

@@ -4,6 +4,8 @@ license: apache-2.0
 
 # Multimodal Graph Benchmark
 
+Paper: https://huggingface.co/papers/2406.16321
+
 Project Page: [https://mm-graph-benchmark.github.io/](https://mm-graph-benchmark.github.io/)
 
 Code: [https://github.com/mm-graph-benchmark/mm-graph-benchmark](https://github.com/mm-graph-benchmark/mm-graph-benchmark)