My main takeaway here is that github has a CSV visualizer.
It's part of the Flat Data[2] work that GitHub Next[3] has been exploring.
[1] https://flatgithub.com [2] https://next.github.com/projects/flat-data/ [3] https://next.github.com
https://github.com/leaflet-maps-course/resources/blob/33fef0...