tpope/vim-markdown — pull request #14 by jayferd (2012-02-08 05:02:54+00:00)
Title: highlight YAML frontmatter, as in Jekyll/Octopress

I'm not sure if this is true with everyone else, but 90% of the time I'm using markdown, I'm using a framework that parses YAML frontmatter.

The change here should only highlight documents that begin with `---\n`, so I think it's pretty unobtrusive. What do you think?