Fixed typo; 'eature' to 'feature'. (#10)

src/plugin.rs

@@ -36,11 +36,11 @@ impl Plugin for TweeningPlugin {
         app.add_event::<TweenCompleted>()
             .add_system(component_animator_system::<Transform>);
 
-        #[cfg(eature = "bevy_ui")]
+        #[cfg(feature = "bevy_ui")]
         app.add_system(component_animator_system::<Text>)
             .add_system(component_animator_system::<Style>);
 
-        #[cfg(eature = "bevy_sprite")]
+        #[cfg(feature = "bevy_sprite")]
         app.add_system(component_animator_system::<Sprite>)
             .add_system(asset_animator_system::<ColorMaterial>);
     }