Upgrade comment to documentation
//! Basic predefined colors.
use super::{RGBAColor, RGBColor};
-// Macro for allowing dynamic creation of doc attributes.
// Taken from https://stackoverflow.com/questions/60905060/prevent-line-break-in-doc-test
+/// Macro for allowing dynamic creation of doc attributes.
#[macro_export]
macro_rules! doc {
{
