fix #gradientBar to .gradientBar in LESS docs

docs/less.html

@@ -948,7 +948,7 @@
         <td>Create a cross-browser striped background gradient</td>
       </tr>
       <tr>
-        <td><code>#gradientBar()</code></td>
+        <td><code>.gradientBar()</code></td>
         <td><code>@primaryColor, @secondaryColor</code></td>
         <td>Used for buttons to assign a gradient and slightly darker border</td>
       </tr>

docs/templates/pages/less.mustache

@@ -871,7 +871,7 @@
         <td>{{_i}}Create a cross-browser striped background gradient{{/i}}</td>
       </tr>
       <tr>
-        <td><code>#gradientBar()</code></td>
+        <td><code>.gradientBar()</code></td>
         <td><code>@primaryColor, @secondaryColor</code></td>
         <td>{{_i}}Used for buttons to assign a gradient and slightly darker border{{/i}}</td>
       </tr>