Show scrollable doc example in multiple places

widget/src/helpers.rs

@@ -681,7 +681,27 @@ where
 
 /// Creates a new [`Scrollable`] with the provided content.
 ///
-/// [`Scrollable`]: crate::Scrollable
+/// Scrollables let users navigate an endless amount of content with a scrollbar.
+///
+/// # Example
+/// ```no_run
+/// # mod iced { pub mod widget { pub use iced_widget::*; } }
+/// # pub type State = ();
+/// # pub type Element<'a, Message> = iced_widget::core::Element<'a, Message, iced_widget::Theme, iced_widget::Renderer>;
+/// use iced::widget::{column, scrollable, vertical_space};
+///
+/// enum Message {
+///     // ...
+/// }
+///
+/// fn view(state: &State) -> Element<'_, Message> {
+///     scrollable(column![
+///         "Scroll me!",
+///         vertical_space().height(3000),
+///         "You did it!",
+///     ]).into()
+/// }
+/// ```
 pub fn scrollable<'a, Message, Theme, Renderer>(
     content: impl Into<Element<'a, Message, Theme, Renderer>>,
 ) -> Scrollable<'a, Message, Theme, Renderer>