added demonstration purposes note

ros-controls · Aug 8, 2023 · fe635c9 · fe635c9
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commit fe635c9
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diff --git a/example_12/doc/userdoc.rst b/example_12/doc/userdoc.rst
@@ -92,6 +92,10 @@ Tutorial steps
 
  This launch file starts the ``position_controller`` that uses the reference interfaces of both ``joint1_position_controller`` and ``joint2_position_controller`` and streamlines into one, and then the ``forward_position_controller`` uses the reference interfaces of the ``position_controller`` to command the *RRBot* joints.
 
+ .. note::
+
+ The second level ``position_controller`` is only added for demonstration purposes, however, a new chainable controller can be configured to directly command the reference interfaces of both ``joint1_position_controller`` and ``joint2_position_controller``.
+
 6. Check if the new controllers are running by
 
  .. code-block:: shell