src/commit.rs: add doc for check_path function

src/commit.rs

-use crate::{init, checkout};
+use crate::{checkout, init};
 use std::{
     path::PathBuf,
     process::{exit, Command, Stdio},
 };
 
 /// Check if .borg repository and results folder exists
+/// # Return
+/// - ` borg_folder`: Path to .borg folder
+/// - `results_folder`: Path to the result folder
 pub fn check_path() -> (PathBuf, PathBuf) {
     let (borg_folder, results_folder) = init::get_borg_folder();
     if !borg_folder.is_dir() {
@@ -68,10 +71,9 @@ pub fn check_if_borgignore_exists(borg_folder: &PathBuf) -> (bool, PathBuf) {
     (project_folder.is_file(), project_folder)
 }
 
-
 /// Function that checks if the archive with the name of the current commit id
 /// exits in borg repository
-pub fn is_a_commit(borg_path: &PathBuf, commit_id: &str) -> bool{
+pub fn is_a_commit(borg_path: &PathBuf, commit_id: &str) -> bool {
     // Trying to create an archive with the current git commit id
     let output = Command::new("borg")
         .arg("list")
@@ -80,11 +82,10 @@ pub fn is_a_commit(borg_path: &PathBuf, commit_id: &str) -> bool{
         .unwrap();
     match output.status.code().unwrap() {
         0 => true,
-        _ => false
+        _ => false,
     }
 }
 
-
 /// Revert the result folder back to the current commit archive
 pub fn revert_commit() {
     let commit_id = get_current_commit();