message: remove information about flat errors object
diff: @@ -285,21 +285,6 @@ export default {
  input.
  </p>
  - <p>
  - <Note>Note: </Note>The object itself is structured as flat (not
  - nested) which means you access errors directly with input name. eg:{" "}
  - </p>
  - <p>
  - <code>{`<input name="username[0].firstName" ref={register} />; \nerrors['username[0].firstName'];`}</code>
  - </p>
  - <p>
  - we will consider to introduce nested error object once{" "}
  - <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining">
  - Optional chaining
  - </a>{" "}
  - has better browser support.
  - </p>
  -
  <p>
  <Note>Note:</Note> You can also learn recipes on{" "}
  <NavLink
  