Upload README.md with huggingface_hub

README.md

@@ -34,3 +34,13 @@ configs:
   - split: test
     path: data/test-*
 ---
+
+# ProofNet Lean4 v3
+
+This dataset is based on `proofnet-v2-lean4` but **removes** any entries
+that caused Lean 4 syntax/parse errors. We also introduce a new field
+**`header_no_import`** that removes `"import Mathlib"`.
+
+**Splits**: `validation` and `test`.
+
+Enjoy!