Added a hyperlink (godotengine#10799)

* Added a link to external web pages

Author: YoucefBoursali

tutorials/math/vectors_advanced.rst

@@ -590,5 +590,5 @@ For more information on using vector math in Godot, see the following article:
 - :ref:`doc_matrices_and_transforms`
 
 If you would like additional explanation, you should check out
-3Blue1Brown's excellent video series "Essence of Linear Algebra":
-https://www.youtube.com/watch?v=fNk_zzaMoSs&list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab
+3Blue1Brown's excellent video series 
+`Essence of Linear Algebra <https://www.youtube.com/watch?v=fNk_zzaMoSs&list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab>`_.