Minor rewording of scheduled downtime message

templates/base/head.tmpl

@@ -238,9 +238,9 @@
 						Scheduled downtime for maintenance
 					</div>
 					<p>On <b>Monday, 24 June, 2019 at 15:00 CEST (13:00 UTC)</b> the GIN service will be unavailable until approximately<br>
-					<b>18:00 CEST (16:00 UTC)</b> on the same day.  For more information, please see the item in our <a href=https://gin.g-node.org/G-Node/Info/wiki/News#upgrades-and-downtime-)>News section</a>.</p>
+					<b>18:00 CEST (16:00 UTC)</b> on the same day.  For more information, please see the item in our <a href=https://gin.g-node.org/G-Node/Info/wiki/News#upgrades-and-downtime>News section</a>.</p>
 
-					<p>If this schedule severely impacts your work, please <a href=mailto:gin@g-node.org>contact us at gin@g-node.org</a>.</p>
+					<p>If this schedule should severely impact your work, please <a href=mailto:gin@g-node.org>contact us at gin@g-node.org</a>.</p>
 				</div>
 			</div>