nostrdb: content_parser: fix incorrect comment.

Sure, this format would be nice, but it's not what the code does.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: William Casarin <jb55@jb55.com>

nostrdb/src/content_parser.c

@@ -91,8 +91,8 @@ static int parse_hashtag(struct cursor *cur, struct ndb_block *block) {
 //
 // bech32 blocks are stored as:
 //
-//     nostr_bech32_type  : varint
 //     bech32_buffer_size : u16
+//     nostr_bech32_type  : varint
 //     bech32_data        : [u8]
 //
 // The TLV form is compact already, so we just use it directly