This is the ROS 2 documentation site.
Under /source are the source files for the site. In the root directory are the files required to locally build the site for testing.
You must have sphinx and the sphinx-tabs extension installed, preferably using pip:
pip3 install sphinx sphinx-tabs
For other distributions please refer to http://www.sphinx-doc.org/en/master/usage/installation.html
To build the site just execute:
make html
The site will be generated in the build/html directory. The main page is README.html