correct the documentation

The jquery plugin work with data-label-text and not data-text-label as the documentation says

documentation-2.html

@@ -143,7 +143,7 @@
                 <td>'OFF'</td>
               </tr>
               <tr>
-                <td>text-label</td>
+                <td>label-text</td>
                 <td>String</td>
                 <td>Text of the center handle of the switch</td>
                 <td>String</td>
@@ -317,4 +317,4 @@
     <script src="dist/js/bootstrap-switch.js"></script>
     <script src="docs/js/main.js"></script>
   </body>
-</html>
+</html>