message: Update docs for renamed integration examples
  The integration examples were renamed in
  , this just updates the
  docs to point to the updates links.
diff: @@ -15,10 +15,11 @@ use crate::{Clipboard, Element, Layout, Point, Rectangle, Shell, Size};
  /// charge of using this type in your system in any way you want.
  ///
  /// # Example
  -/// The [`integration` example] uses a [`UserInterface`] to integrate Iced in
  -/// an existing graphical application.
  +/// The [`integration_opengl`] & [`integration_wgpu`] examples use a
  +/// [`UserInterface`] to integrate Iced in an existing graphical application.
  ///
  -/// [`integration` example]: https://github.com/iced-rs/iced/tree/0.4/examples/integration
  +/// [`integration_opengl`]: https://github.com/iced-rs/iced/tree/0.4/examples/integration_opengl
  +/// [`integration_wgpu`]: https://github.com/iced-rs/iced/tree/0.4/examples/integration_wgpu
  #[allow(missing_debug_implementations)]
  pub struct UserInterface<'a, Message, Renderer> {
  root: Element<'a, Message, Renderer>,
  