Fix add_systems for hello_world in getting_started_v2.rs. Update -> Startup

content/learn/quick-start/getting-started/ecs.md

@@ -67,7 +67,7 @@ We can then add people to our [`World`] using a "startup system". Startup system
 
 {{file_code_block(file="quick-start/getting_started_v3.rs", anchor="add_people_system")}}
 
-Now register the startup system like this:
+Now register the startup system. Note that you can pass more than one system into an `add_systems` call by using a tuple!
 
 {{file_code_block(file="quick-start/getting_started_v3.rs", anchor="app_main")}}
 
@@ -84,7 +84,7 @@ The parameters we pass into a "system function" define what data the system runs
 
 You can interpret the [`Query`] above as: "iterate over every `Name` component for entities that also have a `Person` component".
 
-Now we just register the system in our `App`. Note that you can pass more than one system into an `add_systems` call by using a tuple!
+Now we just register the system in our `App`.
 
 [`Query`]: <https://docs.rs/bevy/latest/bevy/ecs/system/struct.Query.html>
 

learning-code-examples/examples/quick-start/getting_started_v2.rs

@@ -8,6 +8,6 @@ fn hello_world() {
 
 // ANCHOR: app_main
 fn main() {
-    App::new().add_systems(Update, hello_world).run();
+    App::new().add_systems(Startup, hello_world).run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v3.rs

@@ -26,8 +26,7 @@ fn hello_world() {
 // ANCHOR: app_main
 fn main() {
     App::new()
-        .add_systems(Startup, add_people)
-        .add_systems(Update, hello_world)
+        .add_systems(Startup, (hello_world, add_people))
         .run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v4.rs

@@ -27,8 +27,8 @@ fn hello_world() {
 // ANCHOR: app_main
 fn main() {
     App::new()
-        .add_systems(Startup, add_people)
-        .add_systems(Update, (hello_world, greet_people))
+        .add_systems(Startup, (hello_world, add_people))
+        .add_systems(Update, greet_people)
         .run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v5.rs

@@ -36,8 +36,8 @@ fn hello_world() {
 // ANCHOR: app_main
 fn main() {
     App::new()
-        .add_systems(Startup, add_people)
-        .add_systems(Update, (hello_world, (update_people, greet_people).chain()))
+        .add_systems(Startup, (hello_world, add_people))
+        .add_systems(Update, (update_people, greet_people).chain())
         .run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v6.rs

@@ -35,8 +35,8 @@ fn hello_world() {
 fn main() {
     App::new()
         .add_plugins(DefaultPlugins)
-        .add_systems(Startup, add_people)
-        .add_systems(Update, (hello_world, (update_people, greet_people).chain()))
+        .add_systems(Startup, (hello_world, add_people))
+        .add_systems(Update, (update_people, greet_people).chain())
         .run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v7.rs

@@ -47,8 +47,8 @@ fn main() {
     App::new()
         .add_plugins(DefaultPlugins)
         .add_plugins(HelloPlugin)
-        .add_systems(Startup, add_people)
-        .add_systems(Update, (hello_world, (update_people, greet_people).chain()))
+        .add_systems(Startup, (hello_world, add_people))
+        .add_systems(Update, (update_people, greet_people).chain())
         .run();
 }
 // ANCHOR_END: app_main

learning-code-examples/examples/quick-start/getting_started_v8.rs

@@ -36,8 +36,8 @@ pub struct HelloPlugin;
 // ANCHOR: hello_plugin_implementation
 impl Plugin for HelloPlugin {
     fn build(&self, app: &mut App) {
-        app.add_systems(Startup, add_people);
-        app.add_systems(Update, (hello_world, (update_people, greet_people).chain()));
+        app.add_systems(Startup, (hello_world, add_people));
+        app.add_systems(Update, (update_people, greet_people).chain());
     }
 }