This issue should probably be generalized to accurately documenting the build process for dlang.org.
dlang.org should have clear instructions in readme.md (or contributing.md if that's the convention) for building all of dlang.org, building a single document, and how to verify in a browser (e.g. Are there any server-side components that require a web server? If not, say so.)
A little about the site's structure and technologies would be good. For example, I see some files related to dub and even an .ncx file (what's that?). Since the site is mostly written in DDOC, a brief sentence about DDOC and a link to the DDOC reference would be helpful.