Updated `import_input` signature, documentation

src/lib.rs

@@ -14,7 +14,7 @@
 
 use std::fs::File;
 use std::io::Result;
-use std::path::PathBuf;
+use std::path::Path;
 
 extern crate log;
 extern crate simplelog;
@@ -69,6 +69,18 @@ pub fn init() -> std::result::Result<(), log::SetLoggerError> {
 }
 
 /// Import user input from a text file and return them as a String
-pub fn import_input(path: PathBuf) -> Result<String> {
+///
+/// # Arguments
+///
+/// * `path` - path to the file containing the user input
+///
+/// # Example
+///
+/// ```no_run
+/// # use lang_evolve_core::import_input;
+/// use std::path::Path;
+/// let _input = import_input(Path::new("input.txt")).unwrap();
+/// ```
+pub fn import_input(path: &Path) -> Result<String> {
     utils::read_file(&path)
 }