I just released a macro group that will export Keyboard Maestro macros in a manner better than is currently available from within Keyboard Maestro itself. If you wish to share your macros (especially via Github, et. al.), this macro set does two things well:

  1. Enables easy export of all your macros, organized individually, by group, and in their entirety.
  2. Creates a markdown file for showcasing your macro groups with images, removing the need to import the macros to view their contents.

Check it out over on the project page.