tweaks to labs page (icon fonts broken)
tweaks to labs page (icon fonts broken)

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