Template:About/doc
Usage
This implementation supports three optional parameters.
1=- Description of the primary topic ("This page is about …"). It may be left blank if the signification of the primary topic is obvious.
2=- What the other page is about ("For ..."). If unused or blank, defaults to "For other uses".
3=- The title of the first other page ("see ..."). If unused, this defaults to the page title followed by "(disambiguation)".