Update index.html

Author: mistic100

index.html

@@ -1167,7 +1167,7 @@ <h3 id="operators">Operators</h3>
         <td>multiple</td>
         <td>boolean</td>
         <td>Inform the builder that each input can have multiple values. <code>true</code> for
-          <code>in, bot_in</code>, <code>false</code> otherwise.
+          <code>in</code> and  <code>not_in</code>, <code>false</code> otherwise.
         </td>
       </tr>
       <tr>