Host a small survey?

From @dscho:

> I wonder whether some well-crafted, short & unobtrusive survey could help, maybe something along these lines:
>
> > Would you mind sharing what you came here for?
> > - [ ] Git manual
> > - [ ] tutorial
> > - [ ] technical docs
> > - [ ] Find a tool
> > - [ ] other: _____
>
> But maybe that over-indexes on people who have the time to fill out surveys...