Serve docs-demo via Cloudflare

Author: ltm

docs/index.md

@@ -5,7 +5,7 @@ image: /img/meta/open-graph.png
 title: Open-Source UI Toolkit to Create Your Own Mobile or Desktop Apps
 description: Ionic Framework is an open-source UI toolkit to create your own mobile and desktop apps using web technologies with integrations for popular frameworks.
 hide_table_of_contents: true
-demoUrl: https://ionic-docs-demo.herokuapp.com/
+demoUrl: https://docs-demo.ionic.io/
 demoSourceUrl: https://github.com/ionic-team/docs-demo
 ---