diff --git a/README.md b/README.md
index 8801e50..d792dc2 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,9 @@ When droids dance togethers
 DancingDroids is a programm that looks like a game played by your computer alone
 The aim is to display a grid with robots moving in it, until there's a collision between two of them, or between a robot and the edge of the map.
 
+The size of the grid, robot's positions and their move are prconfigured in a file that has to be correctly formated
+
+
 ## Flags
 
 ```