Update config/locales/de.label.yml

Co-authored-by: Ben Rexin <[email protected]>

Author: richardboehme

config/locales/de.label.yml

@@ -124,4 +124,4 @@ de:
       :title: Dresden.rb
       :subtitle: Ruby User Group Dresden
       :meta_desc: Die neue Ruby User Group in Dresden
-      :custom_recurrence: aller drei Monate
+      :custom_recurrence: alle drei Monate