This issue intends to follow the betterment of Markdown support in Gitlab. As we're using Markdown in issues and wikis, rendering issues such as the ones described here pop up... Just FYI, the kramdown markdown engine offers extra functionality over the current implementation used by Gitlab. Especially, footnotes and inline HTML would be both corrected in the Gitlab and at the DWN pages.
Another rendering issue is the lack of support for inline HTML in the wiki. This is an accessibility issue as, for example, abbreviation tags are used in aural systems to read acronyms letter by letter. This issue is currently being investigated by the Gitlab team, and a merge request is available.