server/2016/sidebar.html: validation fix.

diff --git a/server/2016/sidebar.html b/server/2016/sidebar.html
index 764347e76ebfa855a3814cc4a1efd9ab3fa607cd..05b90367372d573bf02f4cbdd2075697f61aa063 100755 (executable)
--- a/server/2016/sidebar.html
+++ b/server/2016/sidebar.html
@@ -30,7 +30,7 @@
                <ul class="nav nav-pills nav-stacked">
                        <li id="mailing-list-link"><a href="https://lists.gnu.org/mailman/listinfo/libreplanet-discuss">Join the discussion list</a></li>
                        <li id="getting_around-link"><a href="/2016/getting_around">Travel info</a></li>
-                       <li><a href="https://crm.fsf.org/civicrm/contribute/transact?reset=1&id=33">Build the scholarship fund</a></li>
+                       <li><a href="https://crm.fsf.org/civicrm/contribute/transact?reset=1&amp;id=33">Build the scholarship fund</a></li>
                        <li id="ahp-link"><a href="/2016/safe-space-policy/">Safe space policy</a></li>
                </ul>