2020-03-18
that LetsEncrypt page says all you need to do is:
sudo certbot --apache -d <domain> --post-hook "/usr/sbin/service apache2 restart"
certbot --authenticator standalone --installer apache -dbonmot.ca -dgay.hfxns.org -dperformance.bonmot.ca -dnew.wayves.ca -dwayves.ca --pre-hook "service apache2 stop" --post-hook "service apache2 start"