Merge branch 'docs-patch-31' into 'master'

minor: format fix for GH import page

See merge request gitlab-org/gitlab-ce!23152

doc/user/project/import/github.md

@@ -17,6 +17,7 @@ the [GitHub rake task](../../../administration/raketasks/github_import.md) to im
 GitHub without the constraints of a Sidekiq worker.
 The following aspects of a project are imported:
+
   * Repository description (GitLab.com & 7.7+)
   * Git repository data (GitLab.com & 7.7+)
   * Issues (GitLab.com & 7.7+)