title: How to retrieve name of user in firebase
body: <p>I am creating an app (Xcode, swift) that has a profile page for each user and I want their name to appear on that page.</p>
  <p>I have been able to get their email address through:</p>
  <pre><code>let email : String = (Auth.auth().currentUser?.email)!
  </code></pre>
  <p>How would I gather the users name? I have the users UID as well.</p>
  <p>I am using firebase by the way</p>