* gpgme.texi (Key Management): Document is_cardkey and card_number
members of gpgme_subkey_t.
(Decrypt): Remove description of the non-existent wrong_key_usage
member of gpgme_recipient_t.
(Verify): Document pka_address member of gpgme_signature_t.
(Creating a Signature): Add missing member names in
gpgme_new_signature_t.
(Registering I/O Callbacks): Fix reference of gpgme_io_cbs struct.
40938feb3f