8 Apr, 2015
See this page to learn the basics: http://mbreen.com/m4.html
I use this script in most of these blog posts and save it as md_code(common.md). Since you can't write a backtick character easily in m4 and you need it a lot in markdown, this defines a md_code(`md_code()') function you can wrap around the text you want in backticks.
undivert(`common.m4')
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