docs: updated readme

Co-authored-by: Johan Lindell <johan@lindell.me>

README.md

@@ -80,7 +80,7 @@ go install github.com/lindell/multi-gitter@latest
 To use multi-gitter, a token that is allowed to list repositories and create pull requests is needed. This token can either be set in the `GITHUB_TOKEN`, `GITLAB_TOKEN`, `GITEA_TOKEN` environment variable, or by using the `--token` flag.
 
 ### GitHub
-[How to generate a GitHub personal access token](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token). Make sure to give to `repo` permissions.
+[How to generate a GitHub personal access token (classic)](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens#creating-a-personal-access-token-classic). Make sure to give it `repo` permissions.
 
 ### GitLab