message: Fix typo in migration v6 to 7 page
diff: @@ -113,7 +113,7 @@ npm i @hookform/devtools@latest // @hookform/devtools: "^3.0.0" if you are usin
  <p>
  <b className={typographyStyles.note}>Important:</b> input value
  - and reference will no longer get removed after unmount unless
  + and reference will no longer get removed after unmount unless{" "}
  <code>shouldUnregister</code> is true.
  </p>
  @@ -496,8 +496,7 @@ npm i @hookform/devtools@latest // @hookform/devtools: "^3.0.0" if you are usin
  <p>
  <b className={typographyStyles.note}>Important:</b> input
  value and reference will no longer get removed after unmount
  - unless
  - <code>shouldUnregister</code> is true.
  + unless <code>shouldUnregister</code> is true.
  </p>
  </section>
  </section>
  