[Humble] Tutorials - parameter doesn't persist and should

[IoTDan]

Executing "ros2 param set /minimal_param_node my_parameter earth" only changes the value once. Doesn’t persist.

happens on CPP and Python: https://docs.ros.org/en/humble/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-CPP.html#change-via-the-console

https://docs.ros.org/en/humble/Tutorials/Beginner-Client-Libraries/Using-Parameters-In-A-Class-Python.html#change-via-the-console