test a fix

Author: peifeng-unity

tutorials/pick_and_place/3_pick_and_place.md

@@ -183,10 +183,10 @@ def plan_trajectory(move_group, destination_pose, start_joint_angles):
  ```bash
  docker run -it --rm -p 10000:10000 -p 5005:5005 unity-robotics:pick-and-place part_3 /bin/bash
  ```
-
+ 
 1. Terminate docker container
-
-Press `Ctrl + C` or `Cmd + C` to terminate the docker container.
+ 
+ Press `Ctrl + C` or `Cmd + C` to terminate the docker container.
 
 ### Manually Setup ROS