diff --git a/README.md b/README.md
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@@ -1,3 +1,3 @@
-This repository contains helping code provided for solving exercises.
+This repository contains helping code provided for solving exercises from the (http://www2.imm.dtu.dk/courses/02506/LECTURE_NOTES_2022.pdf)[course note].
 Anders B. Dahl, abda@dtu.dk
 Vedrana A. Dahl, vand@dtu.dk