Mise à jour de 'README.md'

README.md

@@ -23,12 +23,12 @@ git clone https://gogs.univ-littoral.fr/jzhang/leading_lines.git
 ```
 
 
-2. Cd to the directory
+1. Cd to the directory
 ```sh
 cd leading_lines 
 ```
 
-3. Execute
+1. Execute
 ```sh
 python LigneForce.py YOUR_INPUT_PATH 
 ```