My edit suggestions relating to "set of documents" on 2.4.1, 2.4.5, and 3.2.3

* 2.4.1, 2.4.5, and 3.2.3 - please add a reference back to the discussion
in Key Terms - set of documents.

MC: I don't find a discussion on "set of documents" to point back to. They
already point back to the discussion on "document".

ALS2: you're right - we haven't reached consensus on that part yet

Andi