Merge pull request #2141 from guggero/bip-0322-finalization

BIP-0322: clarify motivation/purpose, add prefix, clarify Proof of Funds format, describe PSBT based signing

Author: jonatack

README.mediawiki

@@ -1072,13 +1072,13 @@ users (see also: [https://en.bitcoin.it/wiki/Economic_majority economic majority
 | Matt Corallo
 | Specification
 | Complete
-|-
+|- style="background-color: #ffffcf"
 | [[bip-0322.mediawiki|322]]
 | Applications
 | Generic Signed Message Format
 | Karl-Johan Alm
 | Specification
-| Draft
+| Complete
 |- style="background-color: #cfffcf"
 | [[bip-0324.mediawiki|324]]
 | Peer Services

bip-0174/type-registry.mediawiki

@@ -43,6 +43,10 @@ This document collects the fields and types used in PSBTs of any version from al
 | <tt>PSBT_GLOBAL_SP_DLEQ = 0x08</tt>
 | [[../bip-0375.mediawiki|375]]
 |-
+| Generic Signed Message
+| <tt>PSBT_GLOBAL_GENERIC_SIGNED_MESSAGE = 0x09</tt>
+| [[bip-0322.mediawiki|322]]
+|-
 | PSBT Version Number
 | <tt>PSBT_GLOBAL_VERSION = 0xFB</tt>
 | [[../bip-0174.mediawiki|174]]