for Blog #3

CoroutineBridge.cs

async Task CoroutineBridge()
{
    Debug.Log("start www await");
    var www = await new WWW("https://unity3d.com");
    Debug.Log(www.text);
    await CustomCoroutine();
    Debug.Log("await after 3 seconds");
}

IEnumerator CustomCoroutine()
{
    Debug.Log("start wait 3 seconds");
    yield return new WaitForSeconds(3);
    Debug.Log("end 3 seconds");
}