message: docs: Remove duplicate container declaration
diff: @@ -21,7 +21,7 @@ const theme = {
  `Provider` supports the [Constate API](https://github.com/diegohaz/constate#provider) which makes [React Context](https://reactjs.org/docs/context.html) easier to use.
  ```jsx
  -import { Container, Provider, Container } from "reakit";
  +import { Container, Provider } from "reakit";
  const initial = {
  Button: {
  