Forum:Please can somebody tell me about how to give a wiki a slogan?

Can somebody tell me how to give a wiki a slogan? e.g. The Club Penguin Wiki - A free, editable encyclopedia about Club Penguin! http://images3.wikia.nocookie.net/__cb20100321155703/clubpenguinrocks/images/e/e6/G-animation.GIF 16:14, April 2, 2010 (UTC)