fix: unjank the demo (#85)

Co-authored-by: tahahawa <tahahawa@gmail.com>
Reviewed-on: NationTech/harmony#85
Reviewed-by: wjro <wrolleman@nationtech.io>

examples/ntfy/src/main.rs

@@ -14,6 +14,7 @@ async fn main() {
 
     maestro.register_all(vec![Box::new(NtfyScore {
         namespace: "monitoring".to_string(),
+        host: "localhost".to_string(),
     })]);
     harmony_cli::init(maestro, None).await.unwrap();
 }