"privacy ca" term in images/fido-attestation-structures.svg

[equalsJeffH]

ought to change "privacy ca" term in images/fido-attestation-structures.svg (lower left corner) to "anonymization CA" or "attestation CA".

[equalsJeffH]

this is a very minor nice-to-have issue, can be addressed in a milestone later than wd-03 or not at all.