add comma; more accurate code snippet

docs/docs.html

@@ -404,7 +404,10 @@ title: Bootstrap Documentation
   <div class="col-span-4">...</div>
   <div class="col-span-4 col-offset-4">...</div>
 </div>
-...
+<div class="row">
+  <div class="col-span-3 col-offset-3">3 offset 3</div>
+  <div class="col-span-3 col-offset-3">3 offset 3</div>
+</div>
 <div class="row">
   <div class="col-span-6 col-offset-3">...</div>
 </div>
@@ -3993,7 +3996,7 @@ For example, <code>&lt;section&gt;</code> should be wrapped as inline.
 {% endhighlight %}
 
     <h2 id="type-components-page-header">Page header</h2>
-    <p>A simple shell for an <code>h1</code> to appropriately space out and segment sections of content on a page. It can utilize the <code>h1</code>'s default <code>small</code> element as well as most other components (with additional styles).</p>
+    <p>A simple shell for an <code>h1</code> to appropriately space out and segment sections of content on a page. It can utilize the <code>h1</code>'s default <code>small</code> element, as well as most other components (with additional styles).</p>
     <div class="bs-docs-example">
       <div class="page-header">
         <h1>Example page header <small>Subtext for header</small></h1>