Minor README code fix.
Minor README code fix.

Fixed what I believe to be a small typo in one of the code examples. One "worker" was not being used at all.
elliottsj/debug,zacronos/debug,CantemoInternal/debug,CantemoInternal/debug,elliottsj/debug,jabaz/debug,zacronos/debug,visionmedia/debug,jabaz/debug