Simple line follower to get people started
Fixed typos & corrected what right & left mean
Moved stdin setup and removed repl hint
Changed to stop, forward, pivotLeft, pivotRight
Refactored to toggling on keypress
Adding message on how to stop calibration
Initial example sumobot
Changed to stop/start on Space only
Fixed condition in keypress handler
Merge pull request #2 from somewhatabstract/patch-1

Simple line follower to get people started