title: In Github API, how can one distinguish a user from an organisation?
body: <p>Take the following Github URL: <code>https://github.com/google</code></p>
  
  <p>How can I determine whether <code>google</code> is a user or an organization?</p>
  
  <p>I need to know to this for querying Github's graphql API in the correct way.</p>