Doc update (backport #3532) (#5696)

* Doc update (#3532)

* Update Using-Parameters-In-A-Class-Python.rst

Updating to a more accurate description of the expected output (py).

* Update Using-Parameters-In-A-Class-CPP.rst

Updating to a more accurate description of the expected output (cpp).

(cherry picked from commit 8a6ad2f)

# Conflicts:
#	source/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-CPP.rst
#	source/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-Python.rst

* address conflicts.

Signed-off-by: Tomoya Fujita <Tomoya.Fujita@sony.com>

---------

Signed-off-by: Tomoya Fujita <Tomoya.Fujita@sony.com>
Co-authored-by: Mario Prats <marioprats@gmail.com>
Co-authored-by: Tomoya Fujita <Tomoya.Fujita@sony.com>

Author: 3 people

source/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-CPP.rst

@@ -395,13 +395,15 @@ Then source the setup files in a new terminal:
       $ call install/setup.bat
 
 Now run the node using the launch file we have just created.
-The terminal should return the following message every second:
+The terminal should return the following message the first time:
 
 .. code-block:: console
 
      $ ros2 launch cpp_parameters cpp_parameters_launch.py
      [INFO] [custom_minimal_param_node]: Hello earth!
 
+Further outputs should show  ``[INFO] [minimal_param_node]: Hello world!`` every second.
+
 Summary
 -------
 

source/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-Python.rst

@@ -394,13 +394,15 @@ Then source the setup files in a new terminal:
       $ call install/setup.bat
 
 Now run the node using the launch file we have just created.
-The terminal should return the following message every second:
+The terminal should return the following message the first time:
 
 .. code-block:: console
 
     $ ros2 launch python_parameters python_parameters_launch.py
     [INFO] [custom_minimal_param_node]: Hello earth!
 
+Further outputs should show  ``[INFO] [minimal_param_node]: Hello world!`` every second.
+
 Summary
 -------