Create assessment-network.md
Create assessment-network.md

add networks

Former-commit-id: 4af2638f7444ad38240e56995b8864f6990c3b7e [formerly 97b5a2e5705a464a1929dc5203a27df19c50f08f]
Former-commit-id: 065d74f7ab58d247726a58a5358cbecb37933d9b
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io