Use recently stabilized intra-doc links

See RFC: https://github.com/rust-lang/rfcs/blob/master/text/1946-intra-rustdoc-links.md

wgpu/src/settings.rs

@@ -1,19 +1,19 @@
 //! Configure a renderer.
 pub use crate::Antialiasing;
 
-/// The settings of a [`Renderer`].
+/// The settings of a [`Backend`].
 ///
-/// [`Renderer`]: ../struct.Renderer.html
+/// [`Backend`]: crate::Backend
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub struct Settings {
-    /// The output format of the [`Renderer`].
+    /// The output format of the [`Backend`].
     ///
-    /// [`Renderer`]: ../struct.Renderer.html
+    /// [`Backend`]: crate::Backend
     pub format: wgpu::TextureFormat,
 
-    /// The present mode of the [`Renderer`].
+    /// The present mode of the [`Backend`].
     ///
-    /// [`Renderer`]: ../struct.Renderer.html
+    /// [`Backend`]: crate::Backend
     pub present_mode: wgpu::PresentMode,
 
     /// The bytes of the font that will be used by default.