PB-2395: linkify "contact us"

Author: adk-swisstopo

get-started/retry.md

@@ -63,7 +63,7 @@ documentation before deciding whether to retry.
 
 If you have questions about this topic or need assistance in picking appropriate
 values in the above algorithm when implementing clients for our systems, you are
-welcome to contact us.
+welcome to [contact us](/page/get-help).
 
 You can also find further information in the following references: