message: docs(avatar): add AvatarGroup docs
diff: @@ -28,7 +28,7 @@ Chakra UI exports 3 avatar-related components:
  - `AvatarGroup`: A wrapper to stack multiple Avatars together.
  ```js
  -import { Avatar, AvatarBadge } from "@chakra-ui/react"
  +import { Avatar, AvatarBadge, AvatarGroup } from "@chakra-ui/react"
  ```
  ## Usage
  @@ -178,6 +178,14 @@ prop.
  ## Props
  -The Avatar component composes `Box` component so you can pass props for `Box`.
  +### Avatar Props
  -<PropsTable of="Avatar" />
  +`Avatar` composes the `Box` component so you can pass all its props. These are
  +props specific to the `Avatar` component:
  +
  +### Avatar Group Props
  +
  +`AvatarGroup` composes the `Box` component so you can pass all its props. These
  +are props specific to the `AvatarGroup` component:
  +
  +<PropsTable of="AvatarGroup" />
  