Adds a link to the https://nextcloud.com/release-channels/ in UpdateN…

…otification.vue

Signed-off-by: Cyrille Bollu <cyr.debian@bollu.be>

apps/updatenotification/src/components/UpdateNotification.vue

@@ -90,7 +90,8 @@
 		<span id="channel_save_msg" class="msg" /><br>
 		<p>
 			<em>{{ t('updatenotification', 'You can always update to a newer version. But you can never downgrade to a more stable version.') }}</em><br>
-			<em>{{ t('updatenotification', 'Note that after a new release the update only shows up after the first minor release or later. We roll out new versions spread out over time to our users and sometimes skip a version when issues are found. Learn more about updates and release channels.') }}</em>
+			<em>{{ t('updatenotification', 'Note that after a new release the update only shows up after the first minor release or later. We roll out new versions spread out over time to our users and sometimes skip a version when issues are found. Learn more about updates and release channels at') }}</em>
+			<a href="https://nextcloud.com/release-channels/">https://nextcloud.com/release-channels/</a>
 		</p>
 
 		<p id="oca_updatenotification_groups">