Insert a module in a Joomla article
If you want to insert a module inside an article, you can do so by using these simple steps:
1. assign a module position to your module that is totally unused. The module position needs to be free. If necessary, create a new module position.
2. Call the module inside your article with the line , where xx is the name of your position (e.g. user3).
Be sure that your module is published, else it won't appear in the article. Also make sure that menu item assignments at the bottom of your module page allow the module to appear under your desired menu item.
That's how you insert a module in a Joomla article.