Change example oneline installation command to not leave a file on disk

[osadalakmal]

Can we please make the example command to install this through curl + bash look like following?

curl -sSL https://xiki.com/install_xsh | bash

This avoid putting temp files in the home dir (or whatever dir you are in when you run the command) and cluttering home directories.

[NightMachinery]

I get curl: (6) Could not resolve host: xiki.com on it ...