diff --git a/tasks/main.yaml b/tasks/main.yaml
index 41c1c5b..7f94923 100644
--- a/tasks/main.yaml
+++ b/tasks/main.yaml
@@ -1,4 +1,5 @@
 ---
+# https://wiki.debian.org/NvidiaGraphicsDrivers
 - name: Add 'contrib' and 'non-free' repository in /etc/apt/sources.list
   lineinfile:
     path: /etc/apt/sources.list