Quick-install script updated

[mrx23dot]

Original install method gives privileged error see benweissmann/getmic.ro#33

[benweissmann]

Hey @mrx23dot -- I think we can keep these instructions as-is; the getmic.ro script will print instructions for users who want to use the update-alternatives integration. I don't think it's a good idea to recommend that users run this script as root by default; there's lots of setups where that's not needed.

[mrx23dot]

Yeah, but it doesn't work out of the box with the current instructions (gives error),
nor does apt install the latest version.
So entry of barrier is put really high.

We could suggest in readme:
curl https://getmic.ro | sh && sudo mv micro /usr/bin
that only gives sudo to mv cmd, but .sh script needs to be cleaned up, so it should end with ./micro available.

Also I would like to get it working with ansible automation, for that I would need silent .sh argument. (to prevent asking for user input)

[benweissmann]

There's ongoing discussion about improving error messaging around the update-alternatives feature; I think we can keep that discussion over on the getmic.ro repo before we make any requests on this repo to update the official docs.

The getmic.ro script does not prompt for input when running without a TTY, so you should be fine running it as part of an Ansible playbook. There's docs on using the GETMICRO_REGISTER env var to control this feature in a non-interactive environment.