Add a snap

[evandandrea]

Hi Dave. Underscore is a handy tool, but there are no distro packages and it wasn't easy for me to find. I work on Snapcraft, so I thought I'd take some spare time to put together a snap. If you publish it in the Snap Store, we can get many more eyeballs on it.

To build,snap install snapcraft from Ubuntu, or install Multipass on MacOS then brew install snapcraft. Run snapcraft to create the .snap.

To publish, create an account, then:

snapcraft login
snapcraft register underscore
snapcraft push --release=stable *.snap

Hope this helps :)