The upcoming 1.3.0 release will be signed with my OpenPGP key; subsequent
releases may also be.
* doc/guix.texi (OPENPGP-SIGNING-KEY-ID, OPENPGP-SIGNING-KEY-URL): Rename to...
(OPENPGP-SIGNING-KEY-ID-1, OPENPGP-SIGNING-KEY-URL-1): ... these,
respectively.
(OPENPGP-SIGNING-KEY-ID-2, OPENPGP-SIGNING-KEY-URL-2): New variables.
(Binary Installation): Adjust to cover for the new key.
(USB Stick and DVD Installation): Likewise.
(Invoking guix refresh): Adjust accordingly.