The current output (more or less a straight copy of the wiki) is available
here:

https://gi.readthedocs.io

This contains two changes:

* Converts all (not completely outdated) wiki pages to a sphinx based
  documentation.
* Converts the man pages to reST and adds a Makefile for building them
  using rst2man. So they can be easily exposed in the sphinx docs.

Goals:

* Have a user focused/compact documentation instead of random wiki pages
  with various todo/ideas pages.
* Take advantage of the gitlab MR workflow by
  * allowing large documentation changes/refactorings with reviews
  * allowing to combine features changes with documentation changes in MRs