vim-markdown-jekyll
About
This is a very simple little syntax tweak to the built-in markdown syntax adding support for the YAML front matter (as comments) and Liquid style tags and filters. Nothing fancy but it works.
Installing
Use Pathogen and put this folder in your bundles directory. If you don't want
to do that, put the markdown.vim file in your ~/.vim/after/syntax directory.
Credits
YAML front matter syntax match pattern: