In the HLVM-Engine ./Document directory
git submodule update --init --recursive
./Setup.sh
cd ./Doxygen && ./Build.sh && cd ..
cd ./Sphinx && ./Build.sh && cd ..
The sphinx html files are in Document/Engine/Sphinx/Build/build/html/index.html
cd ./Doxygen && ./Clean.sh && cd ..
cd ./Sphinx && ./Clean.sh && cd ..