Update javascript.js
Update javascript.js

Former-commit-id: 2d32720039c4e19222a0b99b745d0b0e91f51dd3 [formerly e1bcc023c5897b5f9e9a53fb970a66ad2c857d01]
Former-commit-id: ab4f0617597940c6379acba105ec95fb135dc91b
LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io,LibraryCarpentry/librarycarpentry.github.io