Please see here for automatically regenerated docs from this Autocrypt specification repository:
If you want to read and work on the docs locally checkout the doc directory which contains a sphinx documentation project. You can install sphinx and then run make html in the doc directory to regenerate docs locally.
For implementation development repos, see http://autocrypt.org/en/latest/dev-status.html
Copyright 2016, 2017, the Autocrypt team, CC0 license.