Nobody can be expected to produce a great website without a bit of help to get going. And so we've invested a fair bit of time into producing lots of documentation for Voice.
In particular, new site admins (and those wanting a refresher) should read the Getting Started helpsheet, which goes step-by-step through some common tasks, such as changing your website logo and theme, and creating a new pages.
The documentation uses the Clarity theme for enhanced readability, and has an easy to access popout navigation that shows all the help topics, so you can quickly find the page you want without hunting around too much.
You can also use the search facility to quickly find what you're looking for.