Signed

Generate key.

Add key to github.

List keys.

gpg --list-secret-keys --keyid-format=long

To local git config.

Add email.

Add name.

Add key id.

Git config user.signingkey _.

git commit -S -m "_"

Add force sign.

Git config commit.gpgsign true.

Verify user email.

Adds .patch to github commit url - in order to see the committer email.