In th documentation, the code chunk below showing that the value in the `href` field should start with a `/`, in practice we've experienced that adding slashes in the `href` fields was causing troubles in the handling of the urls. In short the HorizontalNav would append new bits of url to the current one instead of replacing the last term.

const HomePage: React.FC = (props) => {
    const page = {
      href: '/home',
      name: 'Home',
      component: () => <>Home</>
    }
    return <HorizontalNav match={props.match} pages={[page]} />
}