If you just want to preview your Github Markdown files (e.g. your README.md) locally before committing them into Github, check out my Node.js-based Github Flavo

If you just want to preview your Github Markdown files (e.g. your README.md) locally before committing them into Github, check out my Node.js-based Github Flavored Markdown Server: https://github.com/ypocat/gfms https://github.com/ypocat/gfms (it uses Github's CSS and properly parses the "```" code sections).