add Wagtail paradise demo site (#175)

README.md

@@ -388,6 +388,7 @@ Awesome Wagtail [![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38
 - [SecureDrop](https://github.com/freedomofpress/securedrop.org) – Wagtail-powered website of the SecureDrop whistleblower document submission system.
 - [Consumer Financial Protection Bureau](https://github.com/cfpb/consumerfinance.gov) – The source code of the Wagtail-powered consumerfinance.gov is available here on GitHub.
 - [WesternFriend](https://github.com/WesternFriend/WF-website) - community website with directory, ecommerce, and online subscription
+- [WagtailParadise](https://github.com/abrahamrome/WagtailParadise) - demo Wagtail site showing common features and recipes
 
 ## Contribute