Update README to not reference client passthrough

It's there and we support it, but we don't have to _talk_ about it.

Change-Id: Ia3419a72fa13d42a17ddc0243d7800e462a827b2

README.rst

@@ -24,29 +24,22 @@ Sometimes an example is nice.
 ::
 
   import shade
-  import time
+
+  # Initialize and turn on debug loggin
+  shade.simple_logging(debug=True)
 
   # Initialize cloud
   # Cloud configs are read with os-client-config
   cloud = shade.openstack_cloud(cloud='mordred')
 
-  # OpenStackCloud object has an interface exposing OpenStack services methods
+  # Upload an image to the cloud
-  print cloud.list_servers()
+  image = cloud.create_image(
-  s = cloud.list_servers()[0]
+      'ubuntu-trusty', filename='ubuntu-trusty.qcow2', wait=True)
 
-  # But you can also access the underlying python-*client objects
+  # Find a flavor with at least 512M of RAM
-  # This will go away at some point in time and should be considered only
+  flavor = cloud.get_flavor_by_ram(512)
-  # usable for temporary poking
-  cinder = cloud.cinder_client
-  volumes = cinder.volumes.list()
-  volume_id = [v for v in volumes if v['status'] == 'available'][0]['id']
-  nova = cloud.nova_client
-  print nova.volumes.create_server_volume(s['id'], volume_id, None)
-  attachments = []
-  print volume_id
-  while not attachments:
-      print "Waiting for attach to finish"
-      time.sleep(1)
-      attachments = cinder.volumes.get(volume_id).attachments
-  print attachments
 
+  # Boot a server, wait for it to boot, and then do whatever is needed
+  # to get a public ip for it.
+  cloud.create_server(
+      'my-server', image=image, flavor=flavor, wait=True, auto_ip=True)