fixing language on body setup

docs/index.html

@@ -1109,7 +1109,7 @@ window.addEventListener('push', myFunction);
           <ol class="steps">
               <li class="step">
               <h3 class="step-title">1. Fixed bars come first</h3>
-              <p class="step-description">Both <code>.bar-title</code> and <code>.bar-tab</code> components should always be the first thing in the <code>&lt;body&gt;</code> of the page.</p>
+              <p class="step-description">All fixed bars (<code>.bar-title, .bar-tab, .bar-header-secondary, .bar-footer)</code>) should always be the first thing in the <code>&lt;body&gt;</code> of the page. This is really important!</p>
             </li>
             <li class="step">
               <h3 class="step-title">2. Everything else goes in <code>.content</code></h3>