Template:Link if not current/doc

Use this template to avoid producing a self link.

Usage
produces
 * a list item linking to Article if the current page's title is not ,
 * nothing if it is.

Parameters

 * Parameter 1 is necessary, as it is the link.
 * Parameter 2 is optional, and it is the text that is displayed over the link. If parameter 2 doesn't exist, it defaults to parameter 1.