Highlight markdown+mustache syntax for mardown mustache files.
This package adds a new grammar named source.gfm.mustache, used by default for files with extension *.md.mustache.
You should add such grammar in the settings of other installed Atom packages related to markdown text editing (eg. in spell-check settings, in order to enable spell check also for markdown mustache files; in markdown-enhanced-preview, in order to enable preview of markdown mustache files; etc.)