From 5821c3d680cf69375af0446404a1114ce132bc11 Mon Sep 17 00:00:00 2001
From: Jonathan Twite <jonathan.twite@student.uclouvain.be>
Date: Thu, 16 Apr 2020 11:52:14 +0200
Subject: [PATCH] Update README.md

---
 README.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/README.md b/README.md
index a1c6c21..982261a 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,17 @@
 # Projet_Q4_Groupe_O4
 
+
+prerequise: 
+
+- gcc
+- make 
+
+To launch the program: 
+
+- download the project
+- open the project directory with terminal
+- Enter the following commands:
+    make fact
+    ./ fact your_input_filename your_output_filename
+
+The output file will appear in the project file directory.
\ No newline at end of file
-- 
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