To build the documentation locally do the following :
> pip install sphinx sphinx-autobuild
> cd docs
> make html
To build the other language(like Chinese version) documentation locally do the following :
> pip install sphinx sphinx-autobuild
> cd docs
> make -e SPHINXOPTS="-D language='zh_CN'" html
This will create the output in _build/html so on Mac you should be able to
> open _build/html/index.html
which will open a browser with the rendered documentation