Additional cleanup on CSDGM 1.1 crosswalk
Additional cleanup on CSDGM 1.1 crosswalk

pjdufour/project-open-data.github.io,portofsandiego/project-open-data.github.io,portofsandiego/project-open-data.github.io,portofsandiego/project-open-data.github.io,pjdufour/project-open-data.github.io,pjdufour/project-open-data.github.io,portofsandiego/project-open-data.github.io,pjdufour/project-open-data.github.io