Add Keyoxide-compatible Ariadne proofs to the WKD GPG key, using
Ariadne proofs.
This makes the key much bigger, so apply lossless static HTTP
compression. Static compression on idempotent assets isn't a security
concern.
Copy what tantek did by using h-pronoun to link to pronoun.is and
combining p-pronouns (plural) with p-pronoun (singular). Seems to be
supported by some implementations such as Authl.
This also entailed re-writing my "about" page's def-lists in raw HTML,
which was probably long overdue.
