fixing precommit from last PR on Route Tool Tutorial

tutorials/docs/navigation2_route_tool.rst

@@ -22,13 +22,13 @@ By the end of this tutorial, you should feel comfortable creating and modifying
 Prerequisites
 ============
 
-Prior to using the route tool, you will need to create an occupancy grid map using the slam_toolbox package. 
+Prior to using the route tool, you will need to create an occupancy grid map using the slam_toolbox package.
 Follow `this tutorial <https://docs.nav2.org/tutorials/docs/navigation2_with_slam.html>`_ for instructions on how to generate and save an occupancy grid map.
 
 Tutorial Steps
 ==============
 
-To start the route tool, open a terminal and run the command: 
+To start the route tool, open a terminal and run the command:
 
 .. code-block:: bash
 
@@ -96,4 +96,4 @@ Saving a Route Graph
 
 Once you are ready to save your route graph, click the "Save" button at the bottom right of the panel.
 This will then open a file explorer so you can specify where you would like to save your graph as a geojson file.
-After entering in a filepath and clicking "Save", your route graph should be ready for use with the Nav2 route server!
+After entering in a filepath and clicking "Save", your route graph should be ready for use with the Nav2 route server!