title: How to correctly register font-awesome for md-icon?
body: <p>The documentation of <a href="https://material.angular.io/components/component/icon" rel="noreferrer">md-icon</a> describes how to use font-awesome in several parts and suggests we could use font-awesome eventually like</p>
  
  <pre><code>&lt;md-icon fontSet="fa" fontIcon="alarm"&gt;&lt;/md-icon&gt;
  </code></pre>
  
  <p>But the documentation is very confusing and I can hardly find a routine to register 3rd font set like font-awesome for md-icon via Google.</p>
  
  <p>Any help is appreciated!</p>
  
  <p>PS: I know the normal <code>&lt;i&gt;</code> way generally works but it doesn't seem working in some <a href="https://material.angular.io/components/component/list" rel="noreferrer">examples</a>, where the md-icon is used originally.</p>