minor changes in Documentary

src/search_index/mod.rs

@@ -7,8 +7,9 @@
 //! to generate a database you need a vector of paths of picture that you want to save and search in it.
 //! You also need a Vector of Feature generator functions that generates the feature of every image
 //!
+//!
 //!```
-//! # use std::path::{PathBuf};
+//! # use std::path::{Path, PathBuf};
 //! # use imsearch::image::Image;
 //! # use imsearch::search_index;
 //! use imsearch::search_index::FeatureGenerator;
@@ -16,7 +17,8 @@
 //! let path: Vec<PathBuf> = Vec::new();
 //! let features: Vec<FeatureGenerator> = Vec::new();
 //!
-//! let Database = search_index::Database::new(&path, features );
+//! let mut database = search_index::Database::new(&path, features );
+//! database.add_image(Path::new("testpath"));
 //! ```
 //!
 //!