Editing tips (at least those that I know of)

General
Editing a page-you probably know about this already, but for those who don't, just click/tap the contribute button and click 'edit this page'

Adding a page- click 'contribute' and select 'add a page'. Then choose the format (blank suggested) and create a page (duh :P)

Advanced
Okay. I am no expert, so again, don't expect too much.

Adding hyperlinks-click that little chain link at the top of the page and paste the URL. And then select what you want to call the page.