title: Uncertain about model association
body: <p>I'm working on a project that allows a user to create a company. If a user creates a company, the user will be the admin. </p>
  
  <p>However I would also like that user to then be able to invite users to sign up. So that all the users will belong to that company.</p>
  
  <p>So my question is that the company would technically I guess belong_to the admin. However the company also has many users. </p>
  
  <p>What would be the right association setup for this?</p>