Fix minor documentation issues

wgpu/src/widget/canvas.rs

@@ -42,7 +42,7 @@ pub use text::Text;
 /// # Example
 /// Let's see how we can draw a circle:
 ///
-/// ```
+/// ```no_run
 /// # mod iced {
 /// #     pub use iced_wgpu::canvas;
 /// #     pub use iced_native::Color;

wgpu/src/widget/canvas/layer/cache.rs

@@ -12,7 +12,7 @@ use std::{cell::RefCell, marker::PhantomData, sync::Arc};
 /// change or it is explicitly cleared.
 ///
 /// [`Layer`]: ../trait.Layer.html
-/// [`Cached`]: struct.Cached.html
+/// [`Cache`]: struct.Cache.html
 #[derive(Debug)]
 pub struct Cache<T: Drawable> {
     input: PhantomData<T>,

wgpu/src/widget/canvas/path.rs

@@ -3,6 +3,7 @@ pub mod arc;
 
 mod builder;
 
+#[doc(no_inline)]
 pub use arc::Arc;
 pub use builder::Builder;