Guide
Everything a folder can do, one page each. Start with the basics; each page shows what it explains.
Basics is all you need for a site: sharing a folder, and what its folders, documents and photos become. Going further is for when you want it to look like yours, and to know what happens behind the scenes.
Every page here is a document in this site's folder, and shows the thing it explains: open one next to its document to compare.