message: doc: added forgotten Example header in doc for named colors
diff: //! Set of colors available for use in Zoon. They can be used in every methods
  //! accepting [HSLuv] colors. The palette is based on <https://tailwindcss.com/docs/customizing-colors>
  +//! # Example
  //! ```no_run
  //! use zoon::{named_color::*, *};
  //!
  