message: Mention the plugins
  Mention that one should source catkin_ws/devel/setup.bash to enable visualizing the voxblox mesh.
diff: @@ -16,7 +16,9 @@ An alternative dataset the `basement dataset <https://projects.asl.ethz.ch/datas
  roslaunch voxblox_ros basement_dataset.launch
  -If you open rviz, you should be able to see the the mesh visualized on the ``/voxblox_node/mesh`` topic of type voxblox_msgs/Mesh, in the ``world`` static frame, as shown below. The mesh only updates once per second (this is a setting in the launch file).
  +If you open rviz, you should be able to see the the mesh visualized on the ``/voxblox_node/mesh`` topic of type voxblox_msgs/Mesh, in the ``world`` static frame, as shown below. To display this topic, one should source ``catkin_ws/devel/setup.bash`` before starting rviz, to make it recognize this topic type.
  +
  +The mesh only updates once per second (this is a setting in the launch file).
  .. image:: http://i.imgur.com/nSX5Qsh.jpg
  :align: center
  