Hi, just a heads up on the docs when installing the GPG key with apt using the https url:
$ sudo apt-key adv --fetch-keys https://download.sublimetext.com/sublimehq-pub.gpg
Executing: /tmp/tmp.dNB4OW2ipc/gpg.1.sh --fetch-keys
https://download.sublimetext.com/sublimehq-pub.gpg
gpgkeys: protocol https' not supported gpg: no handler for keyserver scheme
https’
gpg: WARNING: unable to fetch URI https://download.sublimetext.com/sublimehq-pub.gpg: keyserver error
$ sudo apt-key adv --fetch-keys http://download.sublimetext.com/sublimehq-pub.gpg
Executing: /tmp/tmp.8Q7QODfmSR/gpg.1.sh --fetch-keys
http://download.sublimetext.com/sublimehq-pub.gpg
gpg: key 8A8F901A: public key “Sublime HQ Pty Ltd support@sublimetext.com” imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)