Hm, I'm afraid to say that I can't find a good resource on how to write and build docs for Haskell libraries. Maybe that's a tutorial you could write once you've figured it out?! ;)

Here are a few links though:

* https://ndmitchell.com/downloads/slides-drive-by_haskell_con...

* https://haskell-haddock.readthedocs.io/en/latest/markup.html

* https://docs.haskellstack.org/en/stable/build_command/#synon...

Also, maybe join the #haskell-beginners channel on Slack: https://fpchat-invite.herokuapp.com/

There are other platforms too though, e.g. https://www.reddit.com/r/haskellquestions/, https://discourse.haskell.org/

The Haskell documentation generation tool is named haddock. It comes with GHC. I've never run it standalone, so I don't know how involved that is. But I frequently run it with the command "cabal haddock", which takes care of telling it where all your source files are and where to drop the output.

Thank for reply. I'll dig into it. Kind of documentation I am thinking about not only description of what method do, but also include example of 'how to use' it.

Doctests are often useful to briefly demonstrate how something works: http://hackage.haskell.org/package/doctest

They are a bit finicky to set up though.

Another good resource: http://yannesposito.com/Scratch/en/blog/Haskell-Tutorials--a...