diff --git a/distributed_cron.sh b/distributed_cron.sh
index 966a733..d0e31d4 100644
--- a/distributed_cron.sh
+++ b/distributed_cron.sh
@@ -1,5 +1,10 @@
 #!/usr/bin/env bash
 
+# Author: H2 invent GmbH <support@h2-invent.com>
+# License: AGPLv3
+# Usage: Use the helper script in cronjobs in hosts or containers.
+# The cron_lock can be shared so the job will only be executed one.
+
 TIME=$(shuf -i 0-800 -n1)
 sleep 0.$TIME
 echo "Sleep for 0.$TIME"
@@ -27,4 +32,5 @@ then
     exit 0
 else
     echo "Other Server is running cron job"
-exit 0
\ No newline at end of file
+    exit 0
+fi