Update README.md to reference .localhost (#282)
Update README.md to reference .localhost (#282)

Quite a few Linux distro's use systemd-resolved these days, and the `.localhost` extension will work out of the box without any additional configuration or tooling. This change proposes to make users aware of that.

Relevant man page: https://www.freedesktop.org/software/systemd/man/systemd-resolved.service.html#Synthetic%20Records
puma/puma-dev,attilagyorffy/puma-dev,attilagyorffy/puma-dev,attilagyorffy/puma-dev,puma/puma-dev,puma/puma-dev,puma/puma-dev,attilagyorffy/puma-dev