From PCTeXWiki

Getting Started with WikiMedia

For basic editing help see the WikiMedia site.

To practice using the Wiki try the Sandbox. You may try out a few things there to see how they work.

A good markup reference is the WikiMedia Cheatsheet.

When you are ready to edit an existing page, click the edit tab on that page. If you want to create a new page, enter e.g. "[[Joe's page]]" in an existing page, save the page, and then click on the link to go to the new page and begin writing.