Takes a 24x7 monochrome image and draws it in github's punch card chart
See the following chart for an example
https://github.com/jammaloo/PunchCardChart/graphs/punch-card
==== USAGE ====
Requires ImageMagick.
Copy image.png and punchcardchart to a fresh repo.
Replace image.png with an image of your choice
Run ./punchcardchart then push to github