02-populate Updated README with link to source repo.

Author: stoobie

README.md

@@ -1,2 +1,6 @@
 # publishing-tutorial-sample-repo
-A sample repo to be used in conjunction with the tutorial "Getting started publishing with Pantheon 2" 
+A sample repo to be used in conjunction with the tutorial "Getting started publishing with Pantheon 2"
+
+This repo is a copy of the [Example modular documentation repository (Kogito)](https://github.com/redhat-documentation/modular-docs/tree/mod-doc-repo-example).
+
+For more information, including an explanation of the directories and the directory structure of this repo, see the README file for that repo.