Things we want feedback on for alpha/beta release

[jgabry]

We should do this in an issue instead of the readme (I'll remove it from the readme) and then announce these things in the release announcement.

Add items here that we want people to give feedback on when they try out the package. I'll start with a few that come to mind:

• Method names (e.g. does population_predict() make sense?)
• Clarity of documentation
• Efficiency for problems of different sizes (we should investigate this ourselves too obviously)

[jgabry]

• Whether to include .draw column in aggregate() output. We decided to start without this but the beta release will be a good opportunity to see if there are use cases for it that we didn't envision.