Fix indentation error

rock-glacier-dataset.py

@@ -65,18 +65,18 @@ class RockGlacierDataset(datasets.GeneratorBasedBuilder):
    ]
 
    def _info(self):
-   	   if self.config.name == "image-classification":
-   	   		features = dataset.Features({
+      if self.config.name == "image-classification":
+   	     features = dataset.Features({
    	   			"image": datasets.Image(),
    	   			"labels": datasets.features.ClassLabel(names=_NAMES),
-   	   		})
-   	   		keys = ("image", "labels")
-   	   		task = [ImageClassification(image_column="image", label_column="labels")]
+   	   	 })
+   	   	 keys = ("image", "labels")
+   	   	 task = [ImageClassification(image_column="image", label_column="labels")]
    	   		
-   	   if self.config.name == "image-segmentation":
-   	   		pass
+   	  if self.config.name == "image-segmentation":
+   	     pass
    	   		
-       return datasets.DatasetInfo(
+      return datasets.DatasetInfo(
        	   		description=_DESCRIPTION,
        	  		features=features,
   				supervised_keys=("image", "labels"),
@@ -105,11 +105,11 @@ class RockGlacierDataset(datasets.GeneratorBasedBuilder):
 
    def _generate_examples(self, files):
    
-       if selg.config.name == "image-classification":
-           for i, path in enumerate(files):
-               file_name = os.path.basename(path)
+      if selg.config.name == "image-classification":
+         for i, path in enumerate(files):
+            file_name = os.path.basename(path)
                if file_name.endswith(".png"):
-                   yield i, {
+                  yield i, {
                        "image": path,
 		                "labels": os.path.basename(os.path.dirname(path)).lower(),
-	                }
+	               }