small readme

README.md

+# Cron Daemon
+
+This image lets you run scripts using cron daemon. You should extend this
+image by adding tools you need, like rsync, ssh, ncat or others.
+
+
+## Using
+
+You should mount a folder with your scripts in crond container. The mounting
+points are described by their folder name.
+
+* /etc/periodic/15min
+* /etc/periodic/hourly
+* /etc/periodic/daily
+* /etc/periodic/weekly
+* /etc/periodic/monthly
+
+
+## Example
+
+```
+docker run --rm -name crontainer \
+           -v /my-hourly-scripts/:/etc/periodic/hourly \
+           -d montefuscolo/crond
+```
+