GPG signature verification
https://twitter.com/CameraStyles/status/717653283800801280 https://twitter.com/a_scarpino/status/717419437524123649
Show GPG signed tags and commits since Git already supports signing tags and commits with GPG: https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work
This is currently supported by GitHub. https://github.com/blog/2144-gpg-signature-verification