Fixed indent error in mark.py
Fixed indent error in mark.py

JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,RoboJackets/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software,JNeiger/robocup-software,RoboJackets/robocup-software,JNeiger/robocup-software