Earlier quoted context omitted.
Sorry for the confusion! Help docs are in Settings > Help.
It's kind of gross that the only way to use that is to have it pollute your file space, rather than just having a document to open. Also, on Mac it should be under the actual Help menu, the same way that there should be an Obsidian -> Preferences... menu item (hotkey cmd+,) to open settings. Conventions are important!
Ideally the help docs can be opened as its own vault and can be a nice testing ground for a new user to play around with the functionality.