fix indentation

docs/migrations.rst

@@ -13,49 +13,49 @@ how you can migrate from one version to another.
   ``endpoints.yml`` needs to contain the ``model`` key
   with a ``url`` and an optional ``token``. Here's an example:
 
-	.. code-block:: yaml
+  .. code-block:: yaml
 
-		model:
-			url: http://my_model_server.com/models/default/nlu/tags/latest
-			token: my_model_server_token
+    model:
+      url: http://my_model_server.com/models/default/nlu/tags/latest
+      token: my_model_server_token
 
-	.. note::
+  .. note::
 
-		If you configure ``rasa_nlu.server`` to pull models from a remote server,
-		the default project name will be used. It is defined
-		``RasaNLUModelConfig.DEFAULT_PROJECT_NAME``.
+    If you configure ``rasa_nlu.server`` to pull models from a remote server,
+    the default project name will be used. It is defined
+    ``RasaNLUModelConfig.DEFAULT_PROJECT_NAME``.
 
 
 - ``rasa_nlu.train`` can also be run with the ``--endpoints`` argument
   if you want to pull training data from a URL. Alternatively, the
   current ``--url`` syntax is still supported.
 
-	.. code-block:: yaml
+  .. code-block:: yaml
 
-		data:
-			url: http://my_data_server.com/projects/default/data
-			token: my_data_server_token
+    data:
+      url: http://my_data_server.com/projects/default/data
+      token: my_data_server_token
 
-	.. note::
+  .. note::
 
-		Your endpoint file may contain entries for both ``model`` and ``data``.
-		``rasa_nlu.server`` and ``rasa_nlu.train`` will pick the relevant entry.
+    Your endpoint file may contain entries for both ``model`` and ``data``.
+    ``rasa_nlu.server`` and ``rasa_nlu.train`` will pick the relevant entry.
 
 - If you directly access the ``DataRouter`` class or ``rasa_nlu.train``'s
   ``do_train()`` method, you can directly create instances of
   ``EndpointConfig`` without creating a ``yml`` file. Example:
 
-	.. code-block:: python
+  .. code-block:: python
 
-		from rasa_nlu.utils import EndpointConfig
-		from rasa_nlu.data_router import DataRouter
+    from rasa_nlu.utils import EndpointConfig
+    from rasa_nlu.data_router import DataRouter
 
-		model_endpoint = EndpointConfig(
-				url="http://my_model_server.com/models/default/nlu/tags/latest",
-				token="my_model_server_token"
-		)
+    model_endpoint = EndpointConfig(
+        url="http://my_model_server.com/models/default/nlu/tags/latest",
+        token="my_model_server_token"
+    )
 
-		interpreter = DataRouter("projects", model_server=model_endpoint)
+    interpreter = DataRouter("projects", model_server=model_endpoint)
 
 
 0.12.x to 0.13.0