Fix README for BIP 78

Author: luke-jr

README.mediawiki

@@ -385,14 +385,13 @@ Those proposing changes should consider that ultimately consent may rest with th
 | Justin Newton, Matt David, Aaron Voisine, James MacWhyte
 | Standard
 | Final
-|- style="background-color: #ffffcf"
+|-
 | [[bip-0078.mediawiki|78]]
 | Applications
 | A Simple Payjoin Proposal
 | Nicolas Dorier
-| Informational
-| Proposed
-|-
+| Standard
+| Draft
 |- style="background-color: #ffffcf"
 | [[bip-0079.mediawiki|79]]
 | Applications