Return plain, html templates for NAME

        Arguments:
        - `name`: str

        Return: tuple
        Exceptions: None

def _find_tpls(self, name):
        """
        Return plain, html templates for NAME

        Arguments:
        - `name`: str

        Return: tuple
        Exceptions: None
        """
        return self._find_tpl(name, extension='.txt'), self._find_tpl(name, extension='.html')