Improve wiki page of questions about how the self balancing works

[joshua255]

I made a page in the wiki of questions to ask people when we go to demos to see if they can figure out how the robot balances. I'd love it if someone would read over the page and make edits or suggestions of how to make the explanations any clearer. https://github.com/SouthEugeneRoboticsTeam/ursa/wiki/Questions-to-ask-people-at-demos-about-URSA