title: Github commandline GHI authentication error
body: <p>I'm trying to use ghi against my repo, I have tried multiple ways to setup the ghi config, but none worked. Some of the things I have tried:</p>
  
  <ol>
  <li>Set environment variable: GITHUB_USER &amp; GITHUG_TOKEN</li>
  <li>Run <code>git config --global github.user &lt;username&gt;</code> &amp; <code>git config --global github.token &lt;token&gt;</code></li>
  <li>Simply use the <code>ghi config --auth &lt;username&gt;</code> command to set the authentication. </li>
  </ol>
  
  <p>None of the above worked. </p>
  
  <p>When I do </p>
  
  <p><code>
  $ ghi -vv config --auth &lt;username&gt;
  ===&gt; POST /authorizations {"scopes":["public_repo","repo"],"note":"ghi on &lt;name-mbp.domain&gt;","note_url":"https://github.com/stephencelis/ghi"}
  &lt;=== 401: {"message":"Bad credentials","documentation_url":"https://developer.github.com/v3"}
                                                       ✔
  Bad credentials
  </code></p>
  
  <p>So one thing I notice is that the Documentation_url is that the end point? How would I edit that url to be my end point?</p>