NUCAPT's website is a Wiki, which means that any logged-in user can easily edit any unprotected page and have those changes posted immediately to that page.
Editing a Wiki page is very easy. Simply click on the "'Edit this page" tab at the top (or the edit link on the right or bottom) of a Wiki page. This will bring you to a page with a text box containing the editable text of that page. If you want to experiment, please do so in our sandbox, not here.
You can also click on the "Discussion" tab (or the "Discuss this page" link) to see the corresponding talk page, which contains comments about the page from other users. Click on the "+" tab (or "Edit this page") to add a comment.