Maruku is a Markdown interpreter written in Ruby.
The official repository and issue tracker have moved to GitHub: http://github.com/bhollis/maruku
The last Gem release is version 0.6.1.
Authors: Maruku was started by Andrea Censi. The current maintaner is Benjamin Hollis. Many other people contributed patches; a partial list is in the AUTHORS file in the source distribution.
The name of the game: Maruku is the romaji transliteration of the katakana transliteration (マルク) of “Mark”, the first word in Markdown. I chose this name because Ruby is Japanese, and also the syllable “ru” appears in Maruku.
How about a donation to Wikipedia? (and please, if you do donate, let me know).
Use the GitHub issue tracker.