message: Misprint, I think.
diff: @@ -81,7 +81,7 @@ For reference, this is a basic template for an exchange:
  ```js
  const noopExchange = ({ client, forward }) => {
  - return operation$ => {
  + return operations$ => {
  // <-- The ExchangeIO function
  const operationResult$ = forward(operations$);
  return operationResult$;
  