Remove references to AppBuilder in 0.6

content/learn/book/getting-started/ecs/_index.md

@@ -57,7 +57,7 @@ fn main() {
 
 Note the `hello_world` function call. This is a "trait extension method" that converts the `hello_world` function into the {{rust_type(type="trait" crate="bevy_ecs" mod="system" no_mod=true name="System")}} type.
 
-The {{rust_type(type="struct" crate="bevy_app", name="AppBuilder" method="add_system" no_struct=true)}} function adds the system to your App's {{rust_type(type="struct", crate="bevy_ecs", mod="schedule" no_mod=true name="Schedule")}}, but we'll cover that more later.
+The {{rust_type(type="struct" crate="bevy_app", name="App" method="add_system" no_struct=true)}} function adds the system to your App's {{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.
 

content/learn/book/getting-started/plugins/_index.md

@@ -56,7 +56,7 @@ For better organization, let's move all of our "hello" logic to a plugin. To cre
 pub struct HelloPlugin;
 
 impl Plugin for HelloPlugin {
-    fn build(&self, app: &mut AppBuilder) {
+    fn build(&self, app: &mut App) {
         // add things to your app here
     }
 }
@@ -79,7 +79,7 @@ Now all that's left is to move our systems into `HelloPlugin`, which is just a m
 
 ```rs
 impl Plugin for HelloPlugin {
-    fn build(&self, app: &mut AppBuilder) {
+    fn build(&self, app: &mut App) {
         app.add_startup_system(add_people)
             .add_system(hello_world)
             .add_system(greet_people);

content/learn/book/getting-started/resources/_index.md

@@ -51,7 +51,7 @@ fn greet_people(
 Now all that's left is adding a `GreetTimer` Resource to our `HelloPlugin`:
 ```rs
 impl Plugin for HelloPlugin {
-    fn build(&self, app: &mut AppBuilder) {
+    fn build(&self, app: &mut App) {
         // the reason we call from_seconds with the true flag is to make the timer repeat itself
         app.insert_resource(GreetTimer(Timer::from_seconds(2.0, true)))
             .add_startup_system(add_people)