Fix most instances of bare URLs in markdown
What does this MR do?
Ports https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24519 to EE.
Related issues
Relates to: https://gitlab.com/gitlab-com/gitlab-docs/issues/287.
Author's checklist
-
Apply the correct labels and milestone -
Port the MR to EE (or backport from CE): https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24519.
Review checklist
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Technical writer's review (required) -
Merge the EE-MR first, CE-MR (https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24519) afterwards
Edited by Achilleas Pipinellis