Soy templates
https://developer.atlassian.com/confdev/tutorials/writing-soy-templates-in-your-plugin
Plant UML links:
:[[https://confluence.internal-services.com/display/ATL/Release_and_Delivery#bottom Create Note]] Embed Confluence page in Iframe:
https://confluence.atlassian.com/confkb/confluence-page-does-not-display-in-an-iframe-827335781.html