Well, there seem to exist numerous cheat sheets for Rails and other stuff out there, yet none for Rdoc. The official Rdoc Documentation is nice and complete, but sometimes it’s handy to have something you can print out on one page and quickly glance over.
I know that this nuisance hindered me to write extensive documentation for my current project so I decided to create a cheat sheet myself in the hope to encourange other newcomers to Ruby and/or Rails to develop a habit of writing good documentation.