Add Wikibooks link in README

readme.md

@@ -258,4 +258,4 @@ and configure [SMTP settings](https://docs.djangoproject.com/en/3.2/topics/email
 
 ### Ownership of demo content
 
-All content in the demo is public domain. Textual content in this project is either sourced from Wikipedia or is lorem ipsum. All images are from either Wikimedia Commons or other copyright-free sources.
+All content in the demo is public domain. Textual content in this project is either sourced from Wikimedia (Wikipedia for blog posts, [Wikibooks for recipes](https://en.wikibooks.org/wiki/Cookbook:Table_of_Contents)) or is lorem ipsum. All images are from either Wikimedia Commons or other copyright-free sources.