Jekyll is a simple, blog-aware, static site generator that uses Markdown as its default markup for posts and pages.
How about using txt2tags as an alternative markup in Jekyll? Now it’s possible with the Jekyll txt2tags plugin.
Go wild and use %%TOC, preproc, postproc and other txt2tags goodies on your Jekyll website!
txt2tags blog 
Good idea! I’ve posted a forward of this information at https://www.facebook.com/txt2tags