Update GitHub import instructions (!19373) · Merge requests · GitLab.org / GitLab FOSS · GitLab

Achilleas Pipinellis requested to merge github-import-docs into master Jun 04, 2018

What does this MR do?

Updates and clarifies the GitHub-to-GitLab migration process.

Related issues

https://gitlab.com/gitlab-org/gitlab-ce/issues/47157