add section title formatting, add section detailing basic club responsibilities

Any *officially recognized* responsibilities are subject to approval from the president. This can change in a future ratification (and I would rather it change sooner than later, since that would mean we've grown to a handful of trusted members) but let me explain.

We have 3 categories of responsibilities defined here:

- sysadmin stuff
- event planning
- fundraising

All of these are fairly official. Or, like, super official:

- root access to our (my? I am the only one who pays for them, and they run various official CNU business like the UAV lab mailing list) servers
- representing our organization to faculty of CNU
- handling money that is owned or managed by the club