Documentation on submitting and modifying CSS tests with GitHub

Hello,

Mercurial as a way to submit and modify tests no longer works. I need to 
use GitHub to submit new tests and modify existing tests, etc... Where 
is the documentation for that?

Gérard
-- 
Test Format Guidelines
http://testthewebforward.org/docs/test-format-guidelines.html

Test Style Guidelines
http://testthewebforward.org/docs/test-style-guidelines.html

Test Templates
http://testthewebforward.org/docs/test-templates.html

CSS Naming Guidelines
http://testthewebforward.org/docs/css-naming.html

Test Review Checklist
http://testthewebforward.org/docs/review-checklist.html

CSS Metadata
http://testthewebforward.org/docs/css-metadata.html