They need to start shipping the documentation on the actual hardware. Imagine its 1995 and you try and release a bash tool that has no built in man file or documentation of any sort short of some page on your personal website. Bash users would probably call you a script kiddie and yell to get off their lawn.
Thats nice, but still not that ergonomic since you need to remember to now download a new book for whenever you upgrade your version. That could just be something shipped with the device in the settings menu perhaps to make sure you never have the wrong documentation in front of you.
