fix readme server creation

README.rdoc

@@ -46,7 +46,7 @@ As an example, we'll try initializing and persisting a rackspace server:
   )
 
   # boot a gentoo server (flavor 1 = 256, image 3 = gentoo 2008.0)
-  server = connection.servers.new(:flavor_id => 1, :image_id => 3, :name => 'my_server')
+  server = connection.servers.create(:flavor_id => 1, :image_id => 3, :name => 'my_server')
 
   # wait for it to be ready to do stuff
   server.wait_for { ready? }