remove toctrees in articles
change file names, index2.rst doesn't exist, use index.rst instead
use PHP as the default syntax highlighting
Update index.rst
Update index.rst
Merge pull request #18 from vdrizheruk/master

menu items renamed
Merge pull request #13 from xabbuh/remove-article-toctrees

remove toctrees in articles
Merge pull request #15 from xabbuh/fix-sphinx-configuration

Fix and improve the sphinx configuration
Updated cookbook index
describe the installation process