merge from gz-sim8

Signed-off-by: Ian Chen <[email protected]>

tutorials.md.in

@@ -52,6 +52,7 @@ If you are an absolute beginner, start with the Tutorials section.
 * \subpage underwater_vehicles "Underwater Vehicles": Understand how to simulate underwater vehicles
 * \subpage logicalaudiosensor "Logical Audio Sensor": Using the LogicalAudioSensor system to mimic logical audio emission and detection in simulation.
 * \subpage auto_inertia_calculation "Automatic Inertia Calculation": Automatically compute inertia values(mass, mass matrix, center of mass) for SDFormat links.
+* \subpage jointcontrollers "Joint Controllers": Using available joint controller plugins to control joints.
 
 ### Advanced
 
@@ -60,7 +61,7 @@ If you are an absolute beginner, start with the Tutorials section.
 ### Developers
 
 * \subpage createsystemplugins "Create System Plugins": Programmatically access simulation using C++ plugins.
-* \subpage usingcomponents "Using components": Using components in a system plugin.* 
+* \subpage usingcomponents "Using components": Using components in a system plugin.*
 * \subpage rendering_plugins "Rendering plugins": Write plugins that use Gazebo Rendering on the server and client.
 * \subpage test_fixture "Test Fixture": Writing automated CI tests