C-Lightning-Modifications.md

@@ -37,6 +37,8 @@ struct simple_htlc {
     * `local_wallet_index`
     * `local_wallet_ext_key`
 
+* Add wallet index metadata to `towire_hsmd_sign_withdrawal` outputs (change)
+    
 In all of the above cases we only care about the `index`, but we update the PSBT sent to the signer and `ext_key` completes the PSBT element.
 
 * We add wallet index metadata as new fields to existing non-HSMD messages: