more bevy gettings started code

src/main.rs

@@ -1,9 +1,30 @@
 use bevy::prelude::*;
 
 fn main() {
-    App::new().add_systems(Update, hello_world).run();
+    App::new()
+        .add_systems(Startup, add_people)
+        .add_systems(Update, (hello_world, greet_people).chain())
+        .run();
 }
 
 fn hello_world() {
     println!("uwu!");
 }
+
+#[derive(Component)]
+struct Person;
+
+#[derive(Component)]
+struct Name(String);
+
+fn add_people(mut commands: Commands) {
+    commands.spawn((Person, Name("Elaina Proctor".to_string())));
+    commands.spawn((Person, Name("Renzo Hume".to_string())));
+    commands.spawn((Person, Name("Zayna Nieves".to_string())));
+}
+
+fn greet_people(query: Query<&Name, With<Person>>) {
+    for name in &query {
+        println!("hello {}!", name.0);
+    }
+}