Add Orchard investments with a CDN script tag and button

<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">

    const apiKey = 'pk_xxxxx' 
      const apiUrl = 'https://core.orchard.africa/api/v1/embed' 
      const sessionResponse = await fetch(`${apiUrl}/session`, { method: 'POST', headers: { 'X-Orchard-Key': apiKey } })
      const sessionData = await sessionResponse.json()
      
    const orchard = new Orchard({
    apiUrl: apiUrl,
    sessionToken: sessionData.data.token,
    apiKey: apiKey
  })

  const flow = document.querySelector('orchard-investment-flow')
    flow.setClient(orchard)
    flow.setMode('inline')
  </script>

<orchard-investment-flow mode="inline"></orchard-investment-flow>
</body>