Add a link in the footer of Cypht.org about how to update site Cypht.org

[marclaporte]

This is a great way to get contributions. Maybe a new page which explains:

"Suggested edits can be done as pull requests at https://github.com/jasonmunro/cypht-website"

[bim-g]

I think, one page to explain the whole process will be better.

[marclaporte]

Ok, please proceed.