new BIP: codex32 (bitcoin#1425)

new BIP: codex32

---------

Co-authored-by: Russell O'Connor <[email protected]>

Author: apoelstra

README.mediawiki

@@ -484,6 +484,13 @@ Those proposing changes should consider that ultimately consent may rest with th
 | Standard
 | Final
 |-
+| [[bip-0093.mediawiki|93]]
+| Applications
+| codex32: Checksummed SSSS-aware BIP32 seeds
+| Leon Olsson Curr, Pearlwort Sneed
+| Informational
+| Draft
+|-
 | [[bip-0098.mediawiki|98]]
 | Consensus (soft fork)
 | Fast Merkle Trees