Remove history@5 from installation examples

[arinthros]

History is now a direct dependency and should not be manually installed. See

react-router/docs/upgrading/v5.md

Line 150 in bcd5511

You'll also want to remove the `history` dependency from your package.json. The `history` library is a direct dependency of v6 (not a peer dep), so you won't ever import or use it directly. Instead, you'll use the `useNavigate()` hook for all navigation (see below).

[timdorr]

Thanks!