diff --git a/route-planning.md b/route-planning.md
index 7bbb296..096e8d4 100644
--- a/route-planning.md
+++ b/route-planning.md
@@ -100,3 +100,4 @@ distance = `|x1 - x2| + |y1 - y2|`
 
 ### Testowanie projektu
 
+https://youtu.be/b5RHlOqqs4Y 
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