chore: add example

Author: victorhqc

src/lib.rs

@@ -2,6 +2,28 @@
 //!
 //! `fuji` is a library to read Fujifilm Recipes & Exif Metadata from a JPEG or RAF file using
 //! [exiftool](https://exiftool.org/).
+//!
+//! ## Example
+//!
+//! ```
+//! use fuji::exiftool::spawn;
+//! use fuji::recipe::read;
+//!
+//! # fn main() -> Result<(), Box<dyn std::error::Error>> {
+//! // Read metadata from a Fujifilm image
+//! let path = std::path::Path::new("tests/img/DSCF5230.JPG");
+//! let metadata = spawn::read_metadata(&path, None)?;
+//!
+//! // Parse the Fujifilm recipe from the metadata
+//! let recipe = read::from_exif(&metadata)?;
+//!
+//! // Recipe will contain details like FilmSimulation, WhiteBalance, etc.
+//! if let Some(details) = recipe {
+//!     println!("Film Simulation: {:?}", details.film_simulation);
+//!     println!("White Balance: {:?}", details.settings);
+//! }
+//! # Ok(())
+//! # }
 
 pub mod exif;
 pub mod exiftool;