Add dataset card with parquet configs

README.md

@@ -0,0 +1,15 @@
+---
+license: unknown
+configs:
+- config_name: default
+  data_files:
+  - split: test
+    path: default/test.parquet
+  - split: train
+    path: default/train.parquet
+  - split: validation
+    path: default/validation.parquet
+pretty_name: math_qa
+---
+
+MathQA (data-only; full original splits).