add dots to class name references for consistency

getting-started.html

@@ -668,8 +668,8 @@ bootstrap/
     <h2 id="migration-notes">Additional notes</h2>
     <p>Other changes in v3.0 are not immediately apparent. Base classes, key styles, and behaviors have been adjusted for flexibility and our <em>mobile first</em> approach. Here's a partial list:</p>
     <ul>
-      <li>By default, text-based form controls now receive only minimal styling.  For focus colors and rounded corners, apply the <code>form-control</code> class on the element to style.</li>
-      <li>Text-based form controls with the <code>form-control</code> class applied are now 100% wide by default. Wrap inputs inside <code>&lt;div class="col-*"&gt;&lt;/div&gt;</code> to control input widths.</li>
+      <li>By default, text-based form controls now receive only minimal styling.  For focus colors and rounded corners, apply the <code>.form-control</code> class on the element to style.</li>
+      <li>Text-based form controls with the <code>.form-control</code> class applied are now 100% wide by default. Wrap inputs inside <code>&lt;div class="col-*"&gt;&lt;/div&gt;</code> to control input widths.</li>
       <li><code>.badge</code> no longer has contextual (-success,-primary,etc..) classes.</li>
       <li><code>.btn</code> must also use <code>.btn-default</code> to get the "default" button.</li>
       <li><code>.container</code> and <code>.row</code> are now fluid (percentage-based).</li>