Fix typo and indent rock-glacier-dataset.py

rock-glacier-dataset.py

@@ -39,8 +39,8 @@ class RockGlacierDataset(datasets.GeneratorBasedBuilder):
        	   description=_DESCRIPTION,
        	   features=datasets.Features(
 	       {
-		"image": datasets.Image(),
-		"labels": datasets.features.ClassLabel(names=_NAMES),
+                   "image": datasets.Image(),
+                   "labels": datasets.features.ClassLabel(names=_NAMES),
 	       }
 	   ),
 	   supervised_keys=("image", "labels"),
@@ -57,13 +57,13 @@ class RockGlacierDataset(datasets.GeneratorBasedBuilder):
 	       name=datasets.Split.TRAIN,
 	       gen_kwargs={
 		   "files": dl_manager.iter_files([data_files["train"]]),
-	       }
+	       },
 	   ),
 	   datasets.SplitGenerator(
 	       name=datasets.Split.VALIDATION,
 	       gen_kwargs={
 		   "files": dl_manager.iter_files([data_files["validation"]]),
-	       }
+	       },
  	   ),
        ]