Use Case did not show up in the Main Menu

[iyan31]

Last month I already uploaded six of InaSAFE case study in inasafe.org. Unfortunately these use case did not showed up in the main menu, so it would be hard for the visitor to access the page other than typing the link directly in the browser.

It would be great if these case studies can be accessible from the For User page as well.

cc: @timlinux @MariaSolovyeva @Charlotte-Morgan