This is the source of the official modulusphp.com website.
The site has two main sections. The front page which is located at resources/views/welcome.modulus.php and the documentation pages.
The website's documentation is loaded from the resources/docs directory. You will need to clone each version of the documentation into this directory. For example, resources/docs/2.0, etc. All of the documentation is stored on GitHub at modulusphp/docs.