Technical articles - complement
What does this MR do?
- Add publishing date to articles
- Link "article type" reference to its url
These changes follow https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/10299/diffs?diff_id=4185967&start_sha=b69358d02e2c34625db797ec4d23f49dfa56164b, I made a separate MR for them.
cc/ @axil