The code “{loadposition POSITION-NAME}” will help you to add a module in the content .
Follow the below given steps to include a module inside the content
1) Create a module from admin side and assign it to a position. let it be “position1”
Extensions->Module Manager ->New
2) Add a new article and include the code “{loadposition position1 }” so as to load the module assigned to that position “position1”
Content->Article Manager->Add New Article