Apple has posted a support page related to using the Smart Keyboard with iPad Pro.
The page describes how to connect your iPad Pro to the Smart Keyboard, various positions for the keyboard (Typing, Watching) and describes some keyboard shortcuts.
The one downside to those who like to envelope their iPad is that the Keyboard smart cover does not protect the back of the iPad.
You will want to get the iPad Pro Silicone Case to protect the back. It comes in two colors, white and charcoal gray.