moved indent back, did not work as expected

Author: edsu

README.md

@@ -81,15 +81,15 @@ bag = bagit.Bag('/path/to/bag')
 You can change the metadata persisted to the bag-info.txt by using the `info`
 property on a `Bag`.
 
-    ```python
-    # load the bag
-    bag = bagit.Bag('/path/to/bag')
-
-    # update bag info metadata
-    bag.info['Internal-Sender-Description'] = 'Updated on 2014-06-28.'
-    bag.info['Authors'] = ['John Kunze', 'Andy Boyko']
-    bag.save()
-    ```
+```python
+# load the bag
+bag = bagit.Bag('/path/to/bag')
+
+# update bag info metadata
+bag.info['Internal-Sender-Description'] = 'Updated on 2014-06-28.'
+bag.info['Authors'] = ['John Kunze', 'Andy Boyko']
+bag.save()
+```
 
 ### Update Bag Manifests