diff --git a/Algo/Courses/Chapter 6 - Lists.md b/Algo/Courses/Chapter 6 - Lists.md
index 7f76b79..da89b8c 100644
--- a/Algo/Courses/Chapter 6 - Lists.md	
+++ b/Algo/Courses/Chapter 6 - Lists.md	
@@ -147,4 +147,6 @@ val what : int -> int list = <fun>
 ### Reverse
 <img src="https://media.cleanshot.cloud/media/72873/OsuaEVYxMSlXPwyMbR6OBDPPfl1WOZZlJVuGXOeB.jpeg?Expires=1697477902&Signature=ILwYNR152n~xfEMrVa5Lw~pn3kR91fc-MnDYGOxHrZ-ZanfvPHxa~ndgkHuuXrzVbgkhgyR431DZAF1hz21Er-94LFxC7BnwUke9xosc9Xx5XPl13RCPavWoLHWwf-v~TjtUhQ9y796vDMEVgKPqfPlDpexVDHLLzn~CvBXRoR3b8BzORGwrw2nYNgKIUGZ0qBYwwfW2l7nQRoLwf0D6PdxTzSMhMiDd1Kkxnk3ZOOV~GPzvIeaLl6EEEoIXHvbnvq27iiZwCDOAs9sO61n4hZCqeh9GnrgmEJhFfaxO2Nzv1m71bcnxEjpXEWa3GeeMGu3-lxA6eAjuLIBEq2JleQ__&Key-Pair-Id=K269JMAT9ZF4GZ" />
 ### Complexity
+
 <center><iframe width="560" height="315" src="https://www.youtube.com/embed/KXAbAa1mieU?si=cbLGc2y64N87Rv_z" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe></center>
+