add link to current members of infrastructure committee
add link to current members of infrastructure committee


Former-commit-id: 4157c903ecabe19537b3d7f865dbd966cac2040b [formerly cc39b55573d0c4bf65764f7ccca6558aa877ba39]
Former-commit-id: 5bad99ca7a770d32131421d638dd96e834154921
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io