Like This

In other words, take two or more words, capitalized, and write them out without spaces.

Any word entered like this will become a link.

If the link is defined, it appears underlined Like This. Clicking on links Like This takes you to the appropriate page.

If the link is not defined, it appears With A Question Mark?. Clicking on the question mark creates the appropriate page and allows you to edit it (but don't do that here, or you'll ruin the example!)