We've tried to order projects roughly by prominence, using Github stars as a proxy. Projects with logos also come before those without, for aesthetic reasons. Reviewing #56, I noticed that some of them are now out of order because they've gained more stars (xonsh in particular has got a lot more stars now).

• What do we do for projects that aren't on Github, or don't have a single main repository on Github (like Software Carpentry)?
• Do we try to group related projects together (e.g. Jupyter & IPython)
• Do we differentiate documentation/teaching projects from software packages? (SC, IAB)
• Do we treat xonsh specially? We're kind of considering it an honorary scientific Python package because Anthony is part of our community, but I suspect it's less familiar to people in this community than more specifically scientific packages which may have fewer stars.