message: docs: fix wrong number in guide page
diff: @@ -62,7 +62,7 @@ const router = VueRouter.createRouter({
  routes, // short for `routes: routes`
  })
  -// 4. Create and mount the root instance.
  +// 5. Create and mount the root instance.
  const app = Vue.createApp({})
  // Make sure to _use_ the router instance to make the
  // whole app router-aware.
  