Good catch! Our Markdown documentation describes a lot of GitLab Flavored Markdown that will (currently) only work inside GitLab itself, not on the docs site which uses a completely different Markdown renderer.

I've created a Merge Request to add a note to the top of the document encouraging people to view it within GitLab: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/5440

You can check out the Multiline Blockquote example in all its glory here: https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/mark...

Other GFM features are broken in the examples on that page, too. Looks like it was processed using a standard Markdown parser rather than a GFM-aware one.

That page renders correctly if viewed through the repository browser (which apparently always renders Markdown as GFM): https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc//mar...