Per the [Q3 documentation OKR](https://gitlab.com/groups/gitlab-org/-/epics/305) requirements, this will be one of the feature docs that we make "more enticing, replacing the need for their about.gitlab.com feature pages". Feature page: https://about.gitlab.com/features/github Doc page: https://docs.gitlab.com/ee/ci/ci_cd_for_external_repos/github_integration.html See the linked epic for a checklist, and update the description here with it.