lesson-4.md

@@ -116,6 +116,7 @@ In this exercise, we follow the description of a PID implementation given in the
 
 ##### Big Bang interpretation #####
 First, we tried to integrate the entire PID pseudo code solution into our application in one step. As one would expect, this caused the robot to only react slightly to the black line, but mostly spin around in circles. See (the video)<<<ref>>>> for a video of the behaviour.
+
 ### Color Sensor ###
 
 #### Description ####