Fix some unnecessary 301s

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

_snippets/recipe-standard-ingredients.md

@@ -4,7 +4,7 @@
     Already deployed:
 
     * [X] [Docker swarm cluster](/docker-swarm/design/) with [persistent shared storage](/docker-swarm/shared-storage-ceph/)
-    * [X] [Traefik](/docker-swarm/traefik) configured per design
+    * [X] [Traefik](/docker-swarm/traefik/) configured per design
     * [X] DNS entry for the hostname you intend to use (*or a wildcard*), pointed to your [keepalived](/docker-swarm/keepalived/) IP
 
     Related: