vimtutor: HOW DID I NOT KNOW THIS?

[foxfirefey]

We were talking about vi/emacs in #dw and avid emacs user mocker reluctantly mentioned vimtutor to me, and so I'm mentioning it to you all here, in case some of you wanted to start learning vim. You should be able to use it just by typing vimtutor on the command line of a system that has vim installed.