cant found reach router code example

Example 1: @reach/router

const Dash = ({ children }) => (
  <div>
    <h1>Dashboard</h1>
    <hr />
    {children}
  </div>
)

render(
  <Router>
    <Home path="/" />
    <Dash path="dashboard">
      <Invoices path="invoices" />
      <Team path="team" />
    </Dash>
  </Router>
)

Example 2: @reach/router

render(
  <Router>
    <Home path="/" />
    <Dash path="dashboard">
      <Invoices path="invoices" />
      <Team path="team" />
    </Dash>
  </Router>
)

const Dash = ({ children }) => (
  <div>
    <h1>Dashboard</h1>
    <nav>
      <Link to="invoices">Invoices</Link>{" "}
      <Link to="team">Team</Link>
    </nav>
    <hr />
    {children}
  </div>
)