diff --git a/docs/Assignments/week_1_fabacademy/markdown.md b/docs/Assignments/week_1_fabacademy/markdown.md
index 3bc9c8a..391119a 100644
--- a/docs/Assignments/week_1_fabacademy/markdown.md
+++ b/docs/Assignments/week_1_fabacademy/markdown.md
@@ -54,4 +54,5 @@ Result:
     Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent lacinia rutrum nibh sit amet pharetra. Aenean in metus fringilla, varius nulla eu, malesuada nulla. Praesent placerat tortor lacus, nec sollicitudin felis elementum sit amet. Nam mollis tincidunt arcu ac gravida. Vivamus turpis nisi, lacinia in eleifend sed, interdum ultricies quam. 
 
 ## Sources 
-* [markdown cheatsheet](https://www.markdownguide.org/cheat-sheet/)
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+* [markdown cheatsheet](https://www.markdownguide.org/cheat-sheet/)
+* [docs about drop down menu's](https://facelessuser.github.io/pymdown-extensions/extensions/details/)
\ No newline at end of file