Updates tools and use cases for schema
Updates tools and use cases for schema

pjdufour/project-open-data.github.io,judecalvillo/project-open-data.github.io,portofsandiego/project-open-data.github.io,portofsandiego/project-open-data.github.io,pjdufour/project-open-data.github.io,portofsandiego/project-open-data.github.io,Chuck8080/opendata,pjdufour/project-open-data.github.io,judecalvillo/project-open-data.github.io,Chuck8080/opendata,portofsandiego/project-open-data.github.io,pjdufour/project-open-data.github.io