Update layouts/_default/sponsors.html

Author: reshamas

layouts/_default/sponsors.html

@@ -159,7 +159,7 @@ <h3>Sponsorship supports the PyMC project in many ways:</h3>
                                 <i class="uil uil-linkedin-alt"></i> LinkedIn
                             </a>
                         </td>
-                        <td>3,000 followers</td>
+                        <td>3,500 followers</td>
                     </tr>
                     <tr>
                         <td>