Fixed code sample for btn-inverse

Author: rmm5t

components.html

@@ -108,7 +108,7 @@ <h3>Button</h3>
 &lt;button class="btn btn-danger"&gt;Danger&lt;/button&gt;
 &lt;button class="btn btn-success"&gt;Success&lt;/button&gt;
 &lt;button class="btn btn-warning"&gt;Warning&lt;/button&gt;
-&lt;button class="btn btn-warning"&gt;Inverse&lt;/button&gt;
+&lt;button class="btn btn-inverse"&gt;Inverse&lt;/button&gt;
 </pre>
 
           <p>
@@ -1013,4 +1013,4 @@ <h3>Slider</h3>
     <script src="bootstrap/js/google-code-prettify/prettify.js"></script>
     <script src="js/application.js"></script>
   </body>
-</html>
+</html>