updated dataset_dict.json with explicit data_files paths for splits

dataset_dict.json

@@ -2,15 +2,33 @@
   "splits": {
     "train": {
       "name": "train",
-      "num_examples": 19783
+      "num_examples": 19783,
+      "data_files": [
+        {
+          "filename": "train.parquet",
+          "url": "train.parquet"
+        }
+      ]
     },
     "validation": {
       "name": "validation",
-      "num_examples": 1795
+      "num_examples": 1795,
+      "data_files": [
+        {
+          "filename": "validation.parquet",
+          "url": "validation.parquet"
+        }
+      ]
     },
     "test": {
       "name": "test",
-      "num_examples": 1844
+      "num_examples": 1844,
+      "data_files": [
+        {
+          "filename": "test.parquet",
+          "url": "test.parquet"
+        }
+      ]
     }
   }
 }