Bold displaying of columns headers, docsting for WrapperDisplay

Author: Michu1596

scylla/src/transport/query_result.rs

@@ -759,7 +759,7 @@ impl fmt::Display for RowsDisplayer<'_> {
             // ).collect();
 
             table = table.with(Colorization::exact(
-                [Color::FG_MAGENTA],
+                [Color::FG_MAGENTA | Color::BOLD],
                 tabled::settings::object::Rows::first(),
             ));
             // .with(Colorization::columns(colum_colors))
@@ -785,6 +785,7 @@ struct RowsDisplayerSettings {
     colors: ValueColors,
 }
 
+
 impl RowsDisplayerSettings {
     fn new() -> Self {
         // TODO write Default trait
@@ -867,12 +868,43 @@ pub enum ByteDisplaying {
 
 // wrappers for scylla datatypes implementing Display
 
+
+/// A wrapper struct for displaying various Scylla CQL value types with custom formatting settings.
+///
+/// This struct is used to format and display different CQL value types according to the provided
+/// display settings. It supports various formatting options such as color usage, byte display format,
+/// exponent display for floats and integers, and precision for doubles.
+///
+/// # Type Parameters
+///
+/// - `T`: The type of the value to be displayed.
+///
+/// # Fields
+///
+/// - `value`: A reference to the value to be displayed.
+/// - `settings`: A reference to the display settings to be used for formatting.
+///
+/// # Example
+///
+/// ```rust
+/// use scylla::transport::query_result::{WrapperDisplay, RowsDisplayerSettings};
+///
+/// let settings = RowsDisplayerSettings::new();
+/// let value = 42;
+/// let wrapper = WrapperDisplay { value: &value, settings: &settings };
+/// println!("{}", wrapper);
+/// ```
+///
+/// This will print the value `42` formatted according to the provided settings.
+
 struct WrapperDisplay<'a, T: 'a> {
     value: &'a T,
     settings: &'a RowsDisplayerSettings,
 }
 
-// Trait bound to ensure From<WrapperDisplay<T>> for String is implemented
+/// A trait for types that can be converted to a `String`.
+///
+/// Trait bound to ensure From<WrapperDisplay<T>> for String is implemented
 trait StringConvertible<'a>: 'a + fmt::Display {
     fn to_string(&self) -> String;
 }