Docker pull gitlab docs needs login

Hi we have an old gitlab EE and we would like to upgrade, but to catche the docs

docker run -it --rm -p 4000:4000 registry.gitlab.com/gitlab-org/gitlab-docs:11.8

it seems we need an authorization on the registry?

how to do this?

Authentication against the registry is described in GitLab Container Registry | GitLab using a personal access token with docker login prior the run command for example.

Not sure if you need the old docs, the current upgrade path covers 11.8 too.