Adding LearningResource based on 2016 design and recent discussion. /cc #1401
Adding LearningResource based on 2016 design and recent discussion.
/cc #1401

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