Merge pull request #11124 from StevenBlack/issue.11098

Fixes issue #11098 -- Button documentation.

javascript.html

@@ -1415,7 +1415,7 @@ $('#my-alert').bind('closed.bs.alert', function () {
     <h2 id="buttons-usage">Usage</h2>
     <p>Enable buttons via JavaScript:</p>
 {% highlight js %}
-$('.btn-group').button()
+$('.btn').button()
 {% endhighlight %}
 
     <h3>Markup</h3>