Revert "Removed timed cron documentation since we don't want to start supporting it just yet"
Revert "Removed timed cron documentation since we don't want to start supporting it just yet"

This reverts commit db7f5c058eea69f7a5de7fb0b914cca38c37ac30.

vanderbilt/redcap-external-modules,vanderbilt/redcap-external-modules,vanderbilt/redcap-external-modules