nostr: vanity.rs fix

OverOrion · OverOrion · commit 734c0136517e · 2023-05-12T13:17:19.000+02:00
diff --git a/crates/nostr/examples/vanity.rs b/crates/nostr/examples/vanity.rs
@@ -1,6 +1,7 @@
 // Copyright (c) 2022-2023 Yuki Kishimoto
 // Distributed under the MIT software license
 
+use nostr::nips::nip19::ToBech32;
 use nostr::prelude::*;
 
 fn main() -> Result<()> {
