Add pep8-naming to testing extras
Add pep8-naming to testing extras

ovaskevich/PyLaTeX,JelteF/PyLaTeX,votti/PyLaTeX,sebastianhaas/PyLaTeX,JelteF/PyLaTeX,ovaskevich/PyLaTeX,votti/PyLaTeX,jendas1/PyLaTeX,bjodah/PyLaTeX,bjodah/PyLaTeX,sebastianhaas/PyLaTeX,jendas1/PyLaTeX