Update plugin_tutorials/docs/writing_new_nav2_full_pipeline.rst

Signed-off-by: Steve Macenski <stevenmacenski@gmail.com>

Author: SteveMacenski

plugin_tutorials/docs/writing_new_nav2_full_pipeline.rst

@@ -462,6 +462,7 @@ Export at the bottom of the ``.cpp``:
    PLUGINLIB_EXPORT_CLASS(
      nav2_operations_navigator::NavigateWithOperations,
      nav2_core::NavigatorBase)
+See ``nav2_bt_navigator`` package for the implementations of ``NavigateToPose`` and ``NavigateThroughPoses`` for more examples.
 
 Step 5 - Write Behavior Tree XML
 ==================================