Fix markdown linting error

Annoyingly it removes a piece of the page that should stay.

content/learn/quick-start/getting-started/apps/_index.md

@@ -25,4 +25,3 @@ cargo run
 
 in your project folder. You will notice that ... nothing happens. This is because we haven't told our app to do anything yet! Apps are just empty shells capable of running our application logic. Let's add some logic to our App using Bevy ECS.
 
-[`App`]: https://docs.rs/bevy/latest/bevy/app/struct.App.html

content/news/2020-08-10-introducing-bevy/index.md

@@ -82,7 +82,6 @@ fn main() {
 
 [`AddDefaultPlugins::add_default_plugins`] adds all of the features you probably expect from a game engine: a 2D / 3D renderer, asset loading, a UI system, windows, input, etc
 
-
 You can also register the default [`Plugins`] manually like this:
 
 ```rs
@@ -887,7 +886,6 @@ fn read_texture_system(textures: Res<Assets<Texture>>, texture_handle: &Handle<T
 
 ### Asset Events
 
-
 The `Assets<T>` collection is basically just a map from `Handle<T>` to `T` that records created, modified, and removed [`Events`]. These events can also be consumed as a system resource, just like any other [`Events`]:
 
 ```rs