Function format_numbered_list 

pub fn format_numbered_list<T: Display>(items: &[T]) -> String

Format a list with numbers

Creates a numbered list with each item on a new line.

Example

let items = vec!["apple", "banana", "cherry"];
let formatted = format_numbered_list(&items);
assert_eq!(formatted, "  1. apple\n  2. banana\n  3. cherry");