clean docstring

Author: bmccann-bdai

source/isaaclab/isaaclab/actuators/actuator_base.py

@@ -80,7 +80,8 @@ class ActuatorBase(ABC):
        (1)  [:,:,0] speed_effort_gradient : float = 1 (default),
        (2)  [:,:,1] maximum_actuator_velocity : float = torch.inf (default), and
        (3)  [:,:,2] velocity_dependent_resistance : float = 1 (default)
-       which define velocity and effort dependent constraints on the motor's performance.
+    
+    which define velocity and effort dependent constraints on the motor's performance.
 
     This feature is only implemented in IsaacSim v5.0.