Remove typo in Configuration.md (#1905)
Remove typo in Configuration.md (#1905)

This removes an extra 'the' and updates link text in the Browserify/`browser` notes.
ide/jest,blainekasten/jest,mpontus/jest,facebook/jest,bookman25/jest,facebook/jest,skovhus/jest,skovhus/jest,bookman25/jest,mpontus/jest,blainekasten/jest,cpojer/jest,cpojer/jest,bookman25/jest,mpontus/jest,facebook/jest,cpojer/jest,ide/jest,skovhus/jest,ide/jest,blainekasten/jest