Create dataset_infos.json

dataset_infos.json

@@ -0,0 +1,11 @@
+{
+  "data": {
+      "splits": {
+        "train": {
+          "name": "train",
+          "num_examples": 3540659,
+          "dataset_name": "data"
+        }
+    }
+  }
+}