Fixed typos in params for Image.fromUrl()
Fixed typos in params for Image.fromUrl()

Documentation and implementation didn't match up and I was unable to pass {crossOrigin: 'Anonymous' } as the 3rd argument.
georgemarshall/DefinitelyTyped,dsebastien/DefinitelyTyped,markogresak/DefinitelyTyped,magny/DefinitelyTyped,borisyankov/DefinitelyTyped,magny/DefinitelyTyped,AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,mcliment/DefinitelyTyped,dsebastien/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped,AgentME/DefinitelyTyped