title: Image in an email not showing up
body: <p>I have this line in my email.html.erb file:</p>
  
  <pre><code>&lt;%= link_to image_tag('video.png'), "http://www.youtube.com/watch?v=QXhW34KzxL" %&gt;
  </code></pre>
  
  <p>The video.png image is in my images directory in the public directory.</p>
  
  <p>However, the image is not showing up. Why is this? Do I have the wrong path?</p>
  
  <p>The email.html.erb file is in a <code>user_mailer</code> directory which is in the <code>view</code> directory.</p>