edgeware/python-markdown-graphviz — pull request #2 by johanfforsberg (2013-09-24 14:01:29+00:00)
Title: PlantUML plugin

Another plugin that enables drawing of neat sequence diagrams using PlantUML. Surround your plantuml block with tags and hey, Presto!

Obviously requires PlantUML, see http://plantuml.sourceforge.net/