Add Events section to Operations Guide

[ilen]

Events

• Types of Events
  -- Volunteer Only (Bridge Troll)
  -- Workshops (Bridge Troll)
  -- Fundraising (Volunteers on Bridge Troll, sign up with optional donation on EventBrite, @ultrasaurus and @paulproteus have access and can add organizers)

• How to Organize
  -- Bridgetroll (why people should use Bridge Troll)
  -- Meetup (why cross-posting / collaborating with a Meetup group is often a good idea)
  -- Event Brite -- when it is ok to have a paid event

• Meta Organizing - https://github.com/railsbridge/docs/wiki/Meta-Organizer-Cookbook (maybe move this to Bridge Foundry cookbook and make more general?)

• Photography -- draft photo process

• Kids
  -- playcare vs childcare
  -- events for kids/teens