The link was just to the standard docs on this site. From this page you can click About at the top to go to the home page, then Advanced, then for example Plugins or Modules. All the v1.5 additions are there.
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask here, in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.