Update doc: update selenium download url
Update doc: update selenium download url

mike-suggitt/webdriverio,drptbl/webdriverio,vslinko-forks/webdriverio,dandv/webdriverio,georgecrawford/webdriverio,cto/webdriverio,pazone/webdriverio,cto/webdriverio,Pitzcarraldo/webdriverio,eyalzek/webdriverio,Risto-Stevcev/webdriverio,danielgil/webdriverio,compulim/webdriverio,austek-mdsol/webdriverio,saulshanabrook/webdriverio,pazone/webdriverio,jhoguet/webdriverio,sebastiendavid/webdriverio,monolithed/webdriverio,adjohnson916/webdriverio,amitaibu/webdriverio,dandv/webdriverio,noodle-learns-programming/webdriverio,angelsanz/webdriverio,testingbot/webdriverjs,wcainboundary/webdriverio,gabrielpeery/webdriverio,rossPatton/webdriverio,danielgil/webdriverio,stoeffel/webdriverio,monolithed/webdriverio,Risto-Stevcev/webdriverio,austek-mdsol/webdriverio,stoeffel/webdriverio,gabrielpeery/webdriverio,drptbl/webdriverio,leahciMic/webdriverio,angelsanz/webdriverio,amitaibu/webdriverio,vslinko-forks/webdriverio,mike-suggitt/webdriverio,noodle-learns-programming/webdriverio,testingbot/webdriverjs,milafrerichs/webdriverio,leahciMic/webdriverio,compulim/webdriverio,matteonovelli/webdriverio,Pitzcarraldo/webdriverio,richardmcsong/webdriverio,eyalzek/webdriverio,georgecrawford/webdriverio,richardmcsong/webdriverio,jhoguet/webdriverio,matteonovelli/webdriverio,saulshanabrook/webdriverio,milafrerichs/webdriverio,adjohnson916/webdriverio,sebastiendavid/webdriverio,rossPatton/webdriverio,wcainboundary/webdriverio