Fix typo in README.md
Fix typo in README.md
TiagoCardoso1983/celluloid,olleolleolle/celluloid,marshall-lee/celluloid,davydovanton/celluloid,sideci-sample/sideci-sample-celluloid,mehta/celluloid,seuros/celluloid,celluloid/celluloid,jstoja/celluloid,jasonm23/celluloid,dilumn/celluloid,kenichi/celluloid