docs: add note to useController page as well

src/data/api.tsx

@@ -787,11 +787,7 @@ setValue('test', '')
  Set to <code>true</code> during validation.
  </>
  ),
- validatingFields: (
- <>
- Capture fields which are getting async validation.
- </>
- ),
+ validatingFields: <>Capture fields which are getting async validation.</>,
  },
  errors: {
  title: "errors",
@@ -2936,6 +2932,15 @@ const { field: checkbox } = useController({ name: 'test1' })
  <code>Controller</code>. It's useful for creating reusable Controlled
  input.
  </p>
+ <p>
+ <strong>Note:</strong> if you simply want to control a field's value
+ from outside the form, it's not necessary to use{" "}
+ <code>useController</code>. You can simply use the{" "}
+ <Link href="/docs/useform#values">
+ <code>values</code>
+ </Link>{" "}
+ option of `useForm`.
+ </p>
  </>
  ),
  },