diff --git a/2020/readme.md b/2020/readme.md
index 4603f87..73d6a27 100644
--- a/2020/readme.md
+++ b/2020/readme.md
@@ -3,3 +3,6 @@
 This year, I've decided to tinker around with [`nim`][nim].
 
 Enjoy the mess!
+
+
+[nim]: https://nim-lang.org