Move MR dev guide into concepts subdirectory (!3590) · Merge requests · GitLab.org / GitLab Docs · GitLab

Amy Qualls requested to merge aqualls-move-diffs-guide into main Feb 24, 2023

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Link to the merge request that introduced the new page: Page already exists.
Give the MR a descriptive title.
Optional. Link to the review app showing the new page: https://docs.gitlab.com/ee/development/merge_request_concepts/diffs/development.html