update certbot email

• https://serverfault.com/questions/751079/how-do-i-change-the-admin-email-for-lets-encrypt
• https://github.com/certbot/certbot/issues/3310

To do so, run

certbot register --update-registration --email <email>

Краща робота з сервером це менше роботи з сервером

A very easy and efficient way to avoid having to do extra backups is to edit data locally under version control (ie. git) and push to the server for updates. This way you always have an extra copy and it allows to work offline.