Allow installing phpDocumentor 2.9 for PHP 7 support

Move method part to a separate template and include from class template

Update Twig extension

Disable Twig debug mode

Update Twig extension comments

Update README

Update README with installation and usage instructions

Create Twig extension to list classes public methods

Add Table of Contents

Create Twig extension to add Markdown anchor links

Add template

Composer init + require phpdocumentor/phpdocumentor

Initial commit