Fix cargo test

Cargo.toml

@@ -19,6 +19,9 @@ audiotags-dev-macro = {path = "./audiotags-dev-macro", version = "0.1.4"}
 [dev-dependencies]
 tempfile = "3.3.0"
 
+[build-dependencies]
+readme-rustdocifier = "0.1.0"
+
 [features]
 default = ['from']
 from = []

README.md

@@ -63,7 +63,6 @@ fn main() {
 
     tag.write_to_path(MP3_FILE).expect("Fail to save");
 }
-
 ```
 
 License: MIT

src/lib.rs

@@ -35,11 +35,13 @@
 //!
 //! Read the [manual](https://docs.rs/audiotags) for some examples, but here's a quick-one:
 //!
-//! ```rust
+//! ```rust,no_run
+//! use audiotags2::{Tag, Picture, MimeType};
+//!
 //! fn main() {
 //!     // using `default()` or `new()` alone so that the metadata format is
 //!     // guessed (from the file extension) (in this case, Id3v2 tag is read)
-//!     let mut tag = Tag::new().read_from_path(MP3_FILE).unwrap();
+//!     let mut tag = Tag::new().read_from_path("test.mp3").unwrap();
 //!
 //!     tag.set_title("foo title");
 //!     assert_eq!(tag.title(), Some("foo title"));
@@ -59,9 +61,8 @@
 //!     assert!(tag.album_cover().is_none());
 //!     tag.remove_album_cover();
 //!
-//!     tag.write_to_path(MP3_FILE).expect("Fail to save");
+//!     tag.write_to_path("test.mp3").expect("Fail to save");
 //! }
-//!
 //! ```
 
 pub(crate) use audiotags_dev_macro::*;