The above text will cause a box to appear, in which you can place Infoboxes, or images. By default they will list in a column down the right hand side of the screen.
You need to use a Template:Boxbottom to close the box after placing the images/info. Alternatively just use a |} which closes the box. Note that the box closing sign is included, just before this comment, otherwise the comment would appear inside the box!