* Rename h3 title
* Add intro
Should work on Ubuntu Xenial, but should work on any Linux distros.
* Indirect edit files
Instead of providing `sudo vim`, invite to edit files.
* enable now instead of enable and start
* Re-add systemctl enable && systemctl start
* Revert service enablement back to status quo
* Add enable now counterpart for systemd > v220
* Apply suggestions from @sapk
Strip `vim` from editor usage
Co-Authored-By: Antoine GIRARD <sapk@users.noreply.github.com>
Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>
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