diff --git a/windows-ad/populate_ad/README.md b/windows-ad/populate_ad/README.md
index daf316f..22bdd31 100644
--- a/windows-ad/populate_ad/README.md
+++ b/windows-ad/populate_ad/README.md
@@ -1 +1,3 @@
-# Setup Active Directory Lab
\ No newline at end of file
+# Setup Active Directory Lab
+
+[Source](https://activedirectorypro.com/create-active-directory-test-environment/#requirments)