Update. wt library has been moved to archive, no plans to develop it further.
This is just a few words about wt documentation.
It's available online and covers almost all wt features.
And it was built using wt. Documentation sources are available in
the wt repository under docs/ folder.
There was minor issue with deployment though.
The documentation is hosted using GitHub pages for projects and it's
served under baseurl (. I was not aware of this
requirement while developing wt so internally it's not supported. This
means there is a difference between local links in development mode and in
build mode which can lead to broken local links in build mode./wt-docs/ in my case)
I've solved the problem but I'm not sure I like the solution. There must be a better way to handle baseurl (this issue was solved in wt later).