First cut at SpecialAnnouncement and CovidTestingFacility markup. For #2490
First cut at SpecialAnnouncement and CovidTestingFacility markup.
For #2490

vholland/schemaorg,vholland/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,vholland/schemaorg,vholland/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg,schemaorg/schemaorg