README.md in vagrant-rackspace-0.1.2 vs README.md in vagrant-rackspace-0.1.3

@@ -89,19 +89,22 @@
   to partially match some server flavor.
 * `image` - The server image to boot. This can be a string matching the
   exact ID or name of the image, or this can be a regular expression to
   partially match some image.
 * `rackspace_region` - The region to hit. By default this is :dfw. Valid options are: 
-:dfw, :ord, :lon.  User this OR rackspace_compute_url
+:dfw, :ord, :lon, :iad, :syd.  Users should preference using this setting over `rackspace_compute_url` setting.
 * `rackspace_compute_url` - The compute_url to hit. This is good for custom endpoints. 
-Use this OR rackspace_region.
+* `rackspace_auth_url` - The endpoint to authentication against. By default, vagrant will use the global
+rackspace authentication endpoint for all regions with the exception of :lon. IF :lon region is specified
+vagrant will authenticate against the UK authentication endpoint.
 * `public_key_path` - The path to a public key to initialize with the remote
   server. This should be the matching pair for the private key configured
   with `config.ssh.private_key_path` on Vagrant.
 * `server_name` - The name of the server within RackSpace Cloud. This
   defaults to the name of the Vagrant machine (via `config.vm.define`), but
   can be overridden with this.
 * `username` - The username with which to access Rackspace.
+* `disk_config` - Disk Configuration  'AUTO' or 'MANUAL'
 
 These can be set like typical provider-specific configuration:
 
 ```ruby
 Vagrant.configure("2") do |config|