v3.0.1

• [finder] Add stub for Finder (#211) (@VincentLanglet)
• [chore] organize stubs matching namespaces (#210) (@seferov)
• Fix to incorrect signature of ParamConverter::getClass (#208) (@zmitic)
• [doc] Adding for config/preload.php (#206) (@ThomasLandauer)
• [doc] minor formatting improvements (#207) (@ThomasLandauer)