WebIntents/Editing the specification
From W3C Wiki
hg clone https://dvcs.w3.org/hg/web-intents/
You will get a repository with the
web-intents directory. See Anne's W3C Mercurial Documentation for how to configure your local Mercurial client for editing.
Keep your local copy of the repo up to date with
Edit the specification itself in spec/Overview-respec.html.