Forced site regeneration (to keep events up to date)

[Tomasz-Kluczkowski]

To keep the site refreshed we need to make sure github rebuilds it at least once a day.
This happens only when something is committed to the master branch.
In theory an empty commit on a cron job can do the job:
https://stackoverflow.com/questions/24098792/how-to-force-github-pages-build
See how this can be implemented - I have a synology NAS which can run a cron job...
https://stackoverflow.com/questions/42368504/how-to-correctly-add-git-push-command-to-crontab-ubuntu