docs: dedent doc output

Author: josegonzalez

docs/configuration.rst

@@ -11,12 +11,12 @@ passed in under each field in your behavior configuration.
 
 -  ``writer``: Returns a WriterInterface class name.
 
-    - Default: (string)
+   - Default: (string)
       ``Josegonzalez\Upload\File\Writer\DefaultWriter``
 
 -  ``transformer``: Returns a TransformerInterface class name. Can also be a PHP `callable`.
 
-    - Default: (string)
+   - Default: (string)
       ``Josegonzalez\Upload\File\Transformer\DefaultTransformer``
 
 -  ``path``: A path relative to the ``filesystem.root``.
@@ -57,12 +57,12 @@ passed in under each field in your behavior configuration.
 
 - ``filesystem``: An array of configuration info for configuring the writer
 
-    If using the DefaultWriter, the following options are available:
+   If using the DefaultWriter, the following options are available:
 
-    - Options:
+   - Options:
 
-      - ``filesystem.root``: (default ``ROOT . DS``) Directory where files should be written to by default
-      - ``filesystem.adapter``: (default Local Flysystem Adapter) A Flysystem-compatible adapter. Can also be a callable that returns an adapter.
+     - ``filesystem.root``: (default ``ROOT . DS``) Directory where files should be written to by default
+     - ``filesystem.adapter``: (default Local Flysystem Adapter) A Flysystem-compatible adapter. Can also be a callable that returns an adapter.
 
 -  ``nameCallback``: A callable that can be used by the default pathProcessor to rename a file. Only handles original file naming.