diff --git a/README.md b/README.md
index 983f7ae..267bde6 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,16 @@
 
 it's a game
 
-![preview](preview.gif)
\ No newline at end of file
+![preview](preview.gif)
+
+first thing :
+```
+npm install
+```
+
+then to launch :
+```
+npm start
+```
+it's now listening on *:3001
+