Why you did not mention the name of empty wrapper?

Link

https://beta.reactjs.org/learn#writing-markup-with-jsx

In this paragraph you wrote :

JSX is stricter than HTML. You have to close tags like <br />. Your component also can’t return multiple JSX tags. You have to wrap them into a shared parent, like a <div>...</div> or an empty <>...</> wrapper:

I"d recommend to add the name of the empty Wrapper Fragment and provide the two version of it:

function AboutPage() {
  return (
    <Fragment>
      <h1>About</h1>
      <p>Hello there.<br />How do you do?</p>
    </Fragment>
  );
}

The shortcut:

function AboutPage() {
  return (
    <>
      <h1>About</h1>
      <p>Hello there.<br />How do you do?</p>
    </>
  );

}

Open the linked React Learn page and locate the paragraph beginning “JSX is stricter than HTML.” Update it to name Fragment and show both the explicit Fragment syntax and the empty-tag shortcut. Done means the page clearly presents both forms alongside the existing wrapper explanation.