If the link does not correspond to an existing page, a new page is automatically created with its title being the concatenated capitalized words. This new page becomes the starting point for expanding the Wiki site with new information.
When choosing a title for your new page, select a name that is both easy to remember and helpful. You'll want the link to be meaningful and easy to read.
When a new wiki page is initially formed, and no information has yet been added to the page, a question mark is appended to the title. Clicking on the question mark will bring you to the new page, as which point you can add information as you wish. Once information has been added to the new page, links to that page no longer include the question mark.
NB This tutorial doesn't give an example of a new link with its appended question mark. This is because it is just too tempting to click on a question mark and fill in a page. As soon as any information is put on the page, the link would no longer appear with a question mark. Perhaps this is testimony to Wiki's good design - its exactly how the Wiki system is intended to work. See WantedWikiPages for examples of pages on this site that want to be filled in (if there are any).
You can also directly make up a "two or more capitalized words" title of your own and append it immediately after the "/" of the following :
GoodStyle has some suggestions on editing. PatternTemplate? contains a skeletal pattern. TextFormattingRules explains how to mark up text with bullets, external links, and so on.
The body of your page can say anything you want it to say. WhyBotherToStructure? also has some good info for AddingNewPages.