add note about .nav

docs/javascript.html

@@ -566,7 +566,7 @@ $('#myModal').on('hidden', function () {
           <h2>Usage</h2>
 
           <h3>Via data attributes</h3>
-          <p>To easily add scrollspy behavior to your topbar navigation, just add <code>data-spy="scroll"</code> to the element you want to spy on (most typically this would be the body) and <code>data-target=".navbar"</code> to select which nav to use.</p>
+          <p>To easily add scrollspy behavior to your topbar navigation, just add <code>data-spy="scroll"</code> to the element you want to spy on (most typically this would be the body) and <code>data-target=".navbar"</code> to select which nav to use. You'll want to scrollspy with the <code>.nav</code> class.</p>
           <pre class="prettyprint linenums">&lt;body data-spy="scroll" data-target=".navbar"&gt;...&lt;/body&gt;</pre>
 
           <h3>Via JavaScript</h3>

docs/templates/pages/javascript.mustache

@@ -496,7 +496,7 @@ $('#myModal').on('hidden', function () {
           <h2>{{_i}}Usage{{/i}}</h2>
 
           <h3>{{_i}}Via data attributes{{/i}}</h3>
-          <p>{{_i}}To easily add scrollspy behavior to your topbar navigation, just add <code>data-spy="scroll"</code> to the element you want to spy on (most typically this would be the body) and <code>data-target=".navbar"</code> to select which nav to use.{{/i}}</p>
+          <p>{{_i}}To easily add scrollspy behavior to your topbar navigation, just add <code>data-spy="scroll"</code> to the element you want to spy on (most typically this would be the body) and <code>data-target=".navbar"</code> to select which nav to use. You'll want to scrollspy with the <code>.nav</code> class.{{/i}}</p>
           <pre class="prettyprint linenums">&lt;body data-spy="scroll" data-target=".navbar"&gt;...&lt;/body&gt;</pre>
 
           <h3>{{_i}}Via JavaScript{{/i}}</h3>