Update file README.md

README.md

@@ -2,6 +2,6 @@ This is a ROS package and has to be placed inside a catkin workspace
 
 To run the code additionally needed are the drivers for the 3 laser scanners :
 
-LIVOX Mid-100: https://github.com/Livox-SDK/livox_ros_driver
-OUSTER os1-64: https://github.com/ouster-lidar/ouster-ros
+LIVOX Mid-100: https://github.com/Livox-SDK/livox_ros_driver <br />
+OUSTER os1-64: https://github.com/ouster-lidar/ouster-ros    <br />
 RIEGL VZ-400: