fixed invalid operator name.
fixed invalid operator name.

Microsoft/pxt,playi/pxt,playi/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,switch-education/pxt,switch-education/pxt,Microsoft/pxt,switchinnovations/pxt,switchinnovations/pxt,switch-education/pxt,Microsoft/pxt,playi/pxt,Microsoft/pxt,switch-education/pxt,switchinnovations/pxt,playi/pxt