Update: startup resources are now plugin settings

ImageSettings was removed from Bevy, startup settings are now plugin settings not resources. These changes allow the example code to compile with the recommended(required) versions of Bevy.

See: https://github.com/bevyengine/bevy/commit/5622d56be1262fce8a2d458f2b78abf1cab3ab50

book/src/chapter_1.md

@@ -44,8 +44,7 @@ fn startup(
 
 fn main() {
     App::new()
-        .insert_resource(ImageSettings::default_nearest())
-        .add_plugins(DefaultPlugins)
+        .add_plugins(DefaultPlugins.set(ImagePlugin::default_nearest()))
         .add_plugin(KayakContextPlugin)
         .add_plugin(KayakWidgets)
         .add_startup_system(startup)
@@ -114,8 +113,7 @@ fn startup(
 }
 fn main() {
     App::new()
-        .insert_resource(ImageSettings::default_nearest())
-        .add_plugins(DefaultPlugins)
+        .add_plugins(DefaultPlugins.set(ImagePlugin::default_nearest()))
         .add_plugin(KayakContextPlugin)
         .add_plugin(KayakWidgets)
         .add_startup_system(startup)