Typo in readme

[btafoya]

Found a typo in the readme example...

$scraperService = new \Xurumelous\TorrentScraper\TorrentScrapperService(['ezTv', 'kickassTorrents']);

$scraperService = new \Xurumelous\TorrentScraper\TorrentScraperService(['ezTv', 'kickassTorrents']);

Thanks for your work! :)