Fix tests

Author: fornwall

tests/data/pub-fn-main.rs

@@ -1,6 +1,8 @@
+//! ```cargo
 //! [dependencies]
 //! boolinator = "=0.1.0"
 //! tokio = { version = "1", features = ["full"] }
+//! ```
 use boolinator::Boolinator;
 
 #[tokio::main]