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Cosmetic changes to _index.md #794

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14 changes: 7 additions & 7 deletions content/learn/book/getting-started/ecs/_index.md
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Expand Up @@ -52,7 +52,7 @@ fn hello_world() {
}
```

This will be our first system. The only remaining step is to add it to our App!
This will be our first system. The only remaining step is to add it to our `App`!

```rs
use bevy::prelude::*;
Expand All @@ -66,7 +66,7 @@ fn main() {

The {{rust_type(type="struct" crate="bevy_app", name="App" method="add_systems" no_struct=true)}} function adds the system to your App's {{rust_type(type="struct", crate="bevy_app", name="Update")}} {{rust_type(type="struct", crate="bevy_ecs", mod="schedule" no_mod=true name="Schedule")}}, but we'll cover that more later.

Now run your App again using `cargo run`. You should see `hello world!` printed once in your terminal.
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Now run your app again using `cargo run`. You should see `hello world!` printed once in your terminal.

## Your First Components

Expand All @@ -86,7 +86,7 @@ But what if we want our people to have a name? In a more traditional design, we
struct Name(String);
```

We can then add `People` to our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}} using a "startup system". Startup systems are just like normal systems, but they run exactly once, before all other systems, right when our app starts. Let's use {{rust_type(type="struct" crate="bevy_ecs" mod="system" no_mod=true name="Commands")}} to spawn some entities into our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}}:
We can then add people to our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}} using a "startup system". Startup systems are just like normal systems, but they run exactly once, before all other systems, right when our app starts. Let's use {{rust_type(type="struct" crate="bevy_ecs" mod="system" no_mod=true name="Commands")}} to spawn some entities into our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}}:

```rs
fn add_people(mut commands: Commands) {
Expand All @@ -107,7 +107,7 @@ fn main() {
}
```

We could run this App now and the `add_people` system would run first, followed by `hello_world`. But our new people don't have anything to do yet! Let's make a system that properly greets the new citizens of our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}}:
We could run this now and the `add_people` system would run first, followed by `hello_world`. But our new people don't have anything to do yet! Let's make a system that properly greets the new citizens of our {{rust_type(type="struct" crate="bevy_ecs" mod="world" no_mod=true name="World")}}:

```rs
fn greet_people(query: Query<&Name, With<Person>>) {
Expand All @@ -117,11 +117,11 @@ fn greet_people(query: Query<&Name, With<Person>>) {
}
```

The parameters we pass in to a "system function" define what data the system runs on. In this case, `greet_people` will run on all entities with the `Person` and `Name` component.
The parameters we pass into a "system function" define what data the system runs on. In this case, `greet_people` will run on all entities with the `Person` and `Name` component.

You can interpret the Query above as: "iterate over every Name component for entities that also have a Person component"
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`. Note that you can pass more than one system into an `add_systems` call by using a tuple!

```rs
fn main() {
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