This document provides instructions for building Apache CloudStack documentation using Sphinx. It explains the requirements, which include installing Sphinx and gettext. It then outlines the 10 step process to: 1) clone the docs repository, 2) configure locale support in conf.py, 3) generate POT template files, 4) generate PO translation files, 5) modify the PO files, 6) compile the MO files, 7) build the documentation, 8) check the output, 9) run a local HTTP server, and 10) view the documentation.