Update CONTRIBUTING.md #984 - by @sbmaxx
Update CONTRIBUTING.md #984 - by @sbmaxx

sebastiendavid/webdriverio,monolithed/webdriverio,Pitzcarraldo/webdriverio,sebastiendavid/webdriverio,Risto-Stevcev/webdriverio,Risto-Stevcev/webdriverio,testingbot/webdriverjs,testingbot/webdriverjs,Pitzcarraldo/webdriverio,monolithed/webdriverio