diff --git a/README.md b/README.md
index 0811a21..188379a 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # FDF - fil de fer (french for Wire)
 ---
 
-This project is an introduction to 3D drawing. It takes a map file and render it with its height. It listen to keyboard event to apply transformations on it, such as translation, rotations, zoom, and change in altitude factor.
+This project is an introduction to 3D drawing. It takes a map file and render it with its height. It listen to keyboard events to apply transformations, such as translation, rotations, zoom, and change in altitude factor.
 
 the input map is a simple text file that looks like this :
 
@@ -59,7 +59,7 @@ $>
 
 ![example 3D of map after modifications](assets/fdf_loop_move_down_tube.gif)
 
-**change height :**
+**altitude factor :**
 
 ![example 3D of map after modifications](assets/fdf_loop_change_height_50.gif)