Add servo example snippets

components/servo/servo.go

@@ -31,6 +31,30 @@ const SubtypeName = "servo"
 var API = resource.APINamespaceRDK.WithComponentType(SubtypeName)
 
 // A Servo represents a physical servo connected to a board.
+//
+// Move example:
+//    // Move the servo from its origin to the desired angle of 30 degrees.
+//    myServoComponent.Move(context.Background(), 30, nil)
+//
+// Position example:
+//    // Get the current set angle of the servo.
+//    pos1, err := myServoComponent.Position(context.Background(), nil)
+//
+//    // Move the servo from its origin to the desired angle of 20 degrees.
+//    myServoComponent.Move(context.Background(), 20, nil)
+//
+//    // Get the current set angle of the servo.
+//    pos2, err := myServoComponent.Position(context.Background(), nil)
+//
+//    logger.Info("Position 1: ", pos1)
+//    logger.Info("Position 2: ", pos2)
+//
+// Stop 
+//    // Move the servo from its origin to the desired angle of 10 degrees.
+//    myServoComponent.Move(context.Background(), 10, nil)
+//
+//    // Stop the servo. It is assumed that the servo stops moving immediately.
+//    myServoComponent.Stop(context.Background(), nil)
 type Servo interface {
 	resource.Resource
 	resource.Actuator