Document Management Software for Linux
HedgeDoc
HedgeDoc, formerly known as CodiMD is an open-source collaborative markdown editor. HedgeDoc provides collaborative features that makes it easy for teams to work together by creating notes, graphs and even presentations in real-time. With HedgeDoc, all you need to get started is to share a link to your co-workers, and they can join you in the process.
Mark Text
Mark Text is a Markdown editor for Mac, Windows and Linux. With Mark Text you can enjoy a concise text editor, dedicated to improving your reading and editing efficiency.