To create a poll, just click the "Add Poll" button when creating a new post.
Polls are super basic at the moment, but it's possible I'll come back and add more features to them in the future, e.g. supporting links and images in poll options, multiple choice polls, polls on milestones, etc.
For now, here are the rules:
Let me know if you find any bugs, as I coded this one up pretty quickly.