diff --git a/README.md b/README.md
index b38d8e5..2dd6f6c 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 * is a Matrix
 * and a repl: Read–Eval–Print Loop, where Print is doing operations on vectors and matrices in a graphic environment
 * written in vanilla javascript (ES6)
+* see live at https://matrepl.net
 
 ![add 2 vectors](screenshot.png? "add 2 vectors")