Update README for v2.0 stable release (#968)
Update README for v2.0 stable release (#968)
eRadical/google-api-php-client,Jyo1/google_api_php,michabbb-backup/google-api-php-client,bshaffer/google-api-php-client,googleapis/google-api-php-client,michabbb-backup/google-api-php-client,zahoorkhan/google-api-php-client