phpdoc-md is a tool to generate nicly looking documentation from PHPDOC comments. The intention of this tool is little bit different then standard PHPDocumentator. It focus on class instances and generates documentation from public methods only. Whenever class inherits from some other class the full interface from parent and child will be presented as part of it.
You can see an example documentation generated by this tool in here
via composer
"require-dev": {
"clean/phpdoc-md": "0.*"
}