message: Move generated documentation to separate repo
  Our repository is rather big, which is mostly (500 MB) due to the generated documentation on the webpage.
  Users shouldn't need to clone this, so I would suggest we move everything to a separate repository.
diff: @@ -892,7 +892,7 @@ gh-pages:
  - .before_script_git_template
  - .use_status-job-settings
  variables:
  - PUBLIC_REPO: git@github.com:ginkgo-project/ginkgo.git
  + PUBLIC_REPO: git@github.com:ginkgo-project/ginkgo-generated-documentation.git
  script:
  # build docs
  - mkdir -p ${CI_JOB_NAME} && pushd ${CI_JOB_NAME}
  