docs: update sub-account and language settings - #548

Unexpected input(s) 'xl_max_size', 'xll_label', 'xll_max_size', 'fail_if_xll', 'message_if_xll', valid inputs are ['entryPoint', 'args', 'GITHUB_TOKEN', 'xs_label', 'xs_max_size', 's_label', 's_max_size', 'm_label', 'm_max_size', 'l_label', 'l_max_size', 'xl_label', 'fail_if_xl', 'message_if_xl', 'github_api_url', 'files_to_ignore', 'ignore_line_deletions', 'ignore_file_deletions']