Fixed version reference in get started

Closes #2218

src/get-started.html

@@ -84,7 +84,7 @@ $ gem install font-awesome-sass
 
   <section id="custom-less">
     <h2 class="page-header">PRO: Custom LESS or SCSS</h2>
-    <p>Use this method to customize Font Awesome {{ site.bootstrap.version }} using LESS or SCSS.</p>
+    <p>Use this method to customize Font Awesome {{ site.fontawesome.version }} using LESS or SCSS.</p>
     <ol>
       <li>Copy the <code>font-awesome/</code> directory into your project.</li>
       <li>