board.net-Installation.md

@@ -35,6 +35,14 @@ do backup before updating:
 
 added .gitignore files in some dirctories in locale / custom / static
 
+Message for all users:
+
+```
+We do a software update - please stop typing. We'll be back soon. 
+Bitte das Schreiben unterbrechen. 
+Status: http://http://status.fairkom.net/
+```
+
 ## upgrade mariaDB
 
 as this may take too long for ep, we have marked it as hold