Feat: WIP terse code documentation

crates/ratatui/src/scope.rs

@@ -1,3 +1,5 @@
+//! Oscilloscope waveform widget using braille characters.
+
 use crate::theme;
 use ratatui::buffer::Buffer;
 use ratatui::layout::Rect;
@@ -9,12 +11,14 @@ thread_local! {
     static PATTERNS: RefCell<Vec<u8>> = const { RefCell::new(Vec::new()) };
 }
 
+/// Rendering direction for the oscilloscope.
 #[derive(Clone, Copy)]
 pub enum Orientation {
     Horizontal,
     Vertical,
 }
 
+/// Single-channel oscilloscope using braille dot plotting.
 pub struct Scope<'a> {
     data: &'a [f32],
     orientation: Orientation,