Fixed typos for code review pointers to phet-io, see https://github.com/phetsims/phet-io/issues/667
Fixed typos for code review pointers to phet-io, see https://github.com/phetsims/phet-io/issues/667

phetsims/phet-info,phetsims/phet-info,phetsims/phet-info,phetsims/phet-info