Instructions for cron image using

README.md

@@ -1,2 +1,12 @@
-# cron
+# Gentoo linux based cron implementation
+
+Lightweight, simply cron implementation for scheduling jobs via cron solution.
+
+It can be managed by editing crontab.txt using cron-like scripting methods. That means it needed to available for the runnning cron container via /crontab.txt path.
+
+Once crontab.txt changed it's affected after 1 minute.
+
+## Usage:
+
+docker run --volume <host-path-to-crontab.txt>:/crontab.txt cron