use of sh:FollowMe - review

[tgra]

https://github.com/solid/shape-generation-artefacts/blob/main/shapes/AddressBook/addressBookShape.ttl

The addressBook shape was already defined as SHACL in a SolidOS repo.

It uses sh:FollowMe - non-standard SHACL?

[tgra]

sh:FollowMe removed further to meeting, with 8445eca