Updated link to managed node documentation.

ralph-lange · ralph-lange · commit e0ab6fd52098 · 2019-08-09T21:24:39.000+02:00
Signed-off-by: Ralph Lange (CR/AEE1) &lt;ralph.lange@de.bosch.com&gt;
diff --git a/_posts/2019-03-19-system-modes-released.md b/_posts/2019-03-19-system-modes-released.md
@@ -3,6 +3,6 @@ title:  "ROS 2 System Modes package released"
 author: anordman
 ---
 
-We just released the **[ROS 2 system modes package](https://github.com/microROS/system_modes)** that implements our attempt to allow behavioral system composition for ROS 2. *System modes* assume that the system is built from components with a lifecycle (see [ROS 2 managed nodes](https://index.ros.org/doc/ros2/Tutorials/Managed-Nodes/)). It adds a notion of **(sub-)systems**, hierarchically grouping these nodes, as well as a notion of **modes** that determine the configuration of these nodes and (sub-)systems in terms of their parameter values.
+We just released the **[ROS 2 system modes package](https://github.com/microROS/system_modes)** that implements our attempt to allow behavioral system composition for ROS 2. *System modes* assume that the system is built from components with a lifecycle (see [ROS 2 managed nodes](https://github.com/ros2/demos/blob/master/lifecycle/README.rst)). It adds a notion of **(sub-)systems**, hierarchically grouping these nodes, as well as a notion of **modes** that determine the configuration of these nodes and (sub-)systems in terms of their parameter values.
 
 Check the [system_modes example package](https://github.com/micro-ROS/system_modes/tree/master/system_modes_examples) for a small step-by-step example. For more information, check the [ROS wiki](http://wiki.ros.org/system_modes) and the [system_modes package on github](https://github.com/micro-ROS/system_modes).
