Packages -> extensions terminology (#4581)
Packages -> extensions terminology (#4581)


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