GitLab

* Add description of SSL_MODE values

* Apply suggestions from @guillep2k

Rewording suggestions
Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>