diff --git a/README.md b/README.md
index 11e12981f537b7aa079096a7454dec8a59f871c7..4dab3317fea4f0bf65bd0eee36d85d8fd47db367 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ After installing level-2, you can actually enroll the machine.
 
 ## Install Level-2 and enroll
 
-> Installing level-2 components will make your machine managed. You must satisfy password requirements, and disk-encryption requirements. 
+> Installing level-2 components will make your machine managed. You must satisfy password requirements, and disk-encryption requirements. Ref: <https://aka.ms/LinuxPortal>
 
 TBD