If you want to build the documentation yourself:
Make sure you have the package
python-sphinx
installed. For Fedora:$ sudo yum install python-sphinx
For Mint/Ubuntu/Debian:
$ sudo apt-get install python-sphinx
Optionally, you can install the read the docs theme, that will make your in-tree documentation look just like the online version:
$ sudo pip install sphinx_rtd_theme
Build the docs:
$ make html
Once done, point your browser to:
$ [your-browser] build/html/index.html