GPG & github gpg sign
gpg --import private_key.asc
gpg --list-secret-keys --keyid-format LONG
gpg --delete-secret-key <key>
gpg --edit-key <key>
passwd
git config --global user.signingkey <key>
git config --global commit.gpgsign true
Edit .bash_profile
export GPG_TTY=$(tty)
Copy public key https://keybase.io/akiyoshi/key.asc to a new gpg key on github