README file wrong link

[yaroslav-007]

Hello,

On

git/README.md

Line 186 in 5e30d7a

See [Adding a new GPG key to your GitHub account](https://help.github.com/articles/adding-a-new-gpg-key-to-your-github-account/) for more details.

link should point to https://docs.github.com/en/authentication/managing-commit-signature-verification/adding-a-gpg-key-to-your-github-account

[travi]

we would welcome a PR to update the link

[yaroslav-007]

Hello,

Please review #511