AddRailModule adds a custom module to your Wiki's Wikia Rail (side rail).
The info for the module to display is stored in Template:RailModule. You will need to create this template on your wiki containing what you would like to be within the module.
Example: An example of a custom Wikia Rail module can be seen here.
If you're already using importArticles(), you can import the script by adding the below to the article list.
