title: How to read config variable in Phoenix / Elixir?
body: <p>I'd like to set the title of my app in <code>my/config/config.exs</code> file:</p>
  
  <pre><code>config :my, My.Endpoint,
    url: [host: "localhost"],
    root: Path.dirname(__DIR__),
    secret_key_base: "secret",
    title: "My App"
  </code></pre>
  
  <p>How can I read <code>title</code> later to use it in template? Something like:</p>
  
  <pre><code>&lt;div&gt;
    Title of my app is &lt;%= ??? %&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I tried <code>conn.title</code> and it says there's no such key. But, when I try <code>conn.secret_key_base</code> it works. Why?</p>