Links in snappyHexMesh section in online userguide not working

Go here:

https://www.openfoam.com/documentation/user-guide/4-mesh-generation-and-conversion#x14-570004.4.7

and try to click "4.4 Mesh generation with the snappyHexMesh utility" or any of its subsections.

I tried in Chrome and Firefox where nothing happens when I click the links.