OUDS Android documentation is generated using Writerside. In order to modify the OUDS Android documentation or test it locally, you need to download and install it.
When installed, launch Writerside and open the ouds-android/docs directory.
In the Writerside table of content, click on "Getting started". The Writerside Preview panel is on the right with an "Open in browser" button to test documentation display in a browser.
More technical information about Writerside is available here.