Update setup_robot_localization.rst

Changed node name and config file to ekf_filter_node for consistency

Signed-off-by: seatoad <cindysongh@gmail.com>

Author: coffinfish

setup_guides/odom/setup_robot_localization.rst

@@ -36,7 +36,7 @@ Next, we specify the parameters of the ``ekf_node`` using a YAML file. Create a
 .. code-block:: yaml
 
   ### ekf config file ###
-  ekf_node:
+  ekf_filter_node:
       ros__parameters:
   # The frequency, in Hz, at which the filter will output a position estimate. Note that the filter will not begin
   # computation until it receives at least one message from one of the inputs. It will then run continuously at the
@@ -103,7 +103,7 @@ Now, let us add the ``ekf_node`` into the launch file. Open ``launch/display.lau
   robot_localization_node = Node(
       package='robot_localization',
       executable='ekf_node',
-      name='ekf_node',
+      name='ekf_filter_node',
       output='screen',
       parameters=[os.path.join(pkg_share, 'config/ekf.yaml'), {'use_sim_time': LaunchConfiguration('use_sim_time')}]
   )
@@ -179,13 +179,13 @@ To verify that the ``ekf_node`` are the subscribers of these topics, execute:
 
 .. code-block:: shell
 
-  ros2 node info /ekf_node
+  ros2 node info /ekf_filter_node
 
 You should see an output as shown below.
 
 .. code-block:: shell
 
-  /ekf_node
+  /ekf_filter_node
   Subscribers:
     /demo/imu: sensor_msgs/msg/Imu
     /demo/odom: nav_msgs/msg/Odometry