Add zoom info

diff --git a/README.md b/README.md
index 7b838ebca006661d463c66631ba87264d46d84be..8d829a25cd8786f59f18e57806ebe895db050afd 100644 (file)
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ Live Version: https://eliasfleckenstein03.github.io/lagrange-playground/
 
 ## Controls
 - Leftclick to add a point
+- Scroll to zoom in/out
 - Drag a point to move it
 - Drag to move screen