Update README.md

README.md

@@ -11,6 +11,10 @@ tags:
 - topobench
 size_categories:
 - 10K<n<100K
+dataset_description: >
+  A graph-based dataset of the first 10,000 Metamath proofs, including
+  CodeBERT node embeddings, DAG structure, 3,358 labels after rare-label
+  collapsing, conclusion masking, and fixed train/val/test splits.
 ---
 
 # Metamath Proof Graphs (10k)