jgm/pandoc — pull request #1689 by kuribas (2014-10-14 11:34:19+00:00)
Title: Use '=' instead of '#' for atx-style headers in markdown+lhs.

Using atx-style headers in markdown+lhs doesn't give a legal literate haskell file, since the usage of '#' is reserved. I suggest supporting '=' instead of '#' for headings of level 3 or more. This should pose no compatibility problems, since '#' is already illegal, and the '=' syntax is not used for anything else. Using html style subheaders works only when generating html, not for other backends.