Add README

demos/crontab/README.md

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+## CronTab demo
+
+This demo shows examining, creating, and removing cron jobs via crontab.
+
+Output of Get-CronJob is a strongly typed object with properties like DayOfWeek or Command.
+Remove-CronJob prompts before removing the job unless you specifiy -Force.
+
+Tab completion of -UserName is supported, e.g.
+
+Get-CronJob -u <TAB>
+
+NYI: no way to run crontab with sudo if necessary
+NYI: ignoring shell variables or comments
+NYI: New-CronJob -Description "..." (save in comments"
+NYI: @reboot,@daily,@hourly,etc