typo in :type maneuvers bool

this is missing a colon, which leads to it being a separate line in the docs and to me missing the rest of the documentation since the visual distance suggests that it may be a different part alltogether

openrouteservice/directions.py

@@ -121,7 +121,7 @@ def directions(client,
     :type attributes: list or tuple of strings
 
     :param maneuvers: Specifies whether the maneuver object is included into the step object or not. Default: false.
-    :type maneuvers bool
+    :type maneuvers: bool
 
     :param radiuses: A list of maximum distances (measured in
         meters) that limit the search of nearby road segments to every given waypoint.