Update assigned BIP number; change type to "Standards Track"

bip-0388.mediawiki

@@ -1,12 +1,12 @@
 <pre>
-  BIP: wallet-policies
+  BIP: 388
   Layer: Applications
   Title: Wallet Policies for Descriptor Wallets
   Author: Salvatore Ingala <salvatoshi@protonmail.com>
   Comments-Summary: No comments yet.
-  Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-wallet-policies
+  Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0388
   Status: Draft
-  Type: Informational
+  Type: Standards Track
   Created: 2022-11-16
   License: BSD-2-Clause
 </pre>