#72 pointed to rufus scheduler commentary as alternative

Author: nutso

README.md

@@ -41,14 +41,16 @@ You should now be able to see the plugin list in Administration -> Plugins.
 
 ## Configuration
      
-1. Set the check for recurrence via Crontab.
+1. Set the check for recurrence via Crontab or similar.
 
    "Pure" crontab example (running the check for recurrence every 6 hours on the 15s) -- replace {path_to_redmine} with your actual path, e.g. /var/www/redmine:
    ```bash
    15 */4 * * * /bin/sh "cd {path_to_redmine} && bundle exec rake RAILS_ENV=production redmine:recur_tasks" >> log/cron_rake.log 2>&1
    ```
 
-   You can also use e.g. cron.daily or cron.hourly to avoid having to figure out the precise cron syntax for the schedule.
+   You can also use e.g. cron.daily or cron.hourly to avoid having to figure out the precise cron syntax for the schedule; Ruby gems Rufus Scheduler and Whenever can also be used; the key point is that something needs to call recur_tasks on a regular basis.
+
+   More information on Rufus Scheduler config at ([#72](https://github.com/nutso/redmine-plugin-recurring-tasks/issues/72)
 
 2. Decide which role(s) should have the ability to view/add/edit/delete issue recurrence and configure accordingly in Redmine's permission manager (Administration > Roles and Permissions) 
    * View issue recurrence