[July 22nd 2008]
The 'docs' directory contain various text files that should help you understand
the most important parts of the code of MediaWiki. More in-depth documentation
can be found at http://www.mediawiki.org/wiki/Manual:Code.
API documentation is automatically generated and updated daily at:
http://svn.wikimedia.org/doc/
You can get a fresh version using 'make doc' or mwdocgen.php in the
../maintenance/ directory.
For end user / administrators, most of the documentation is located online at:
http://www.mediawiki.org/wiki/Help:Contents
http://www.mediawiki.org/wiki/Manual:Contents