fixes typo, accidentally deleted ampersand
fixes typo, accidentally deleted ampersand

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