Fix servo_cpp_interface_demo (#689)

Author: ibrahiminfinite

doc/examples/realtime_servo/launch/servo_cpp_interface_demo.launch.py

@@ -14,14 +14,11 @@ def generate_launch_description():
         .to_moveit_configs()
     )
     # Get parameters for the Servo node
-    servo_params = (
-        ParameterBuilder("moveit_servo")
-        .yaml(
-            parameter_namespace="moveit_servo",
-            file_path="config/panda_simulated_config.yaml",
-        )
+    servo_params = {
+        "moveit_servo": ParameterBuilder("moveit_servo")
+        .yaml("config/panda_simulated_config.yaml")
         .to_dict()
-    )
+    }
 
     # A node to publish world -> panda_link0 transform
     static_tf = Node(

doc/examples/realtime_servo/src/servo_cpp_interface_demo.cpp

@@ -166,7 +166,7 @@ int main(int argc, char** argv)
 
   // Initializing Servo
   // ^^^^^^^^^^^^^^^^^^
-  auto servo_param_listener = std::make_unique<const servo::ParamListener>(node_);
+  auto servo_param_listener = std::make_unique<const servo::ParamListener>(node_, "moveit_servo");
 
   // Initialize the Servo C++ interface by passing a pointer to the node, the parameters, and the PSM
   moveit_servo::Servo servo(node_, planning_scene_monitor, std::move(servo_param_listener));