title: Set brand image on bootstrap navbar using link_to
body: <p>Bootstrap uses this structure to set brand image: </p>
  
  <pre><code>&lt;nav class="navbar navbar-default"&gt;
    &lt;div class="container-fluid"&gt;
     &lt;div class="navbar-header"&gt;
       &lt;a class="navbar-brand" href="#"&gt;
         &lt;img alt="Brand" src="..."&gt;
       &lt;/a&gt;
     &lt;/div&gt;
    &lt;/div&gt;
  &lt;/nav&gt;
  </code></pre>
  
  <p>But im using a link_to tag and it actually works fine but with no image:</p>
  
  <pre><code>&lt;%= link_to raw('CIFCO'), cr_clientes_path, :class=&gt;'navbar-brand'%&gt;
  </code></pre>
  
  <p>So, how do I turn that link to into the bootstrap structure to show brand image instead of text?</p>