Add additional details to the AWS documentation

docs/getting-started-guides/aws.md

@@ -19,10 +19,12 @@ or if you prefer ```curl```
 export KUBERNETES_PROVIDER=aws; curl -sS https://get.k8s.io | bash
 ```
 
-
-NOTE: The script will provision a new VPC and a 4 node k8s cluster in us-west-2 (Oregon). It'll also try to create or
-reuse a keypair called "kubernetes", and IAM profiles called "kubernetes-master" and "kubernetes-minion".  If these
-already exist, make sure you want them to be used here.
+NOTE: This script calls [cluster/kube-up.sh](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/cluster/kube-up.sh)
+which in turn calls [cluster/aws/util.sh](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/cluster/aws/util.sh)
+using [cluster/aws/config-default.sh](https://github.com/GoogleCloudPlatform/kubernetes/blob/master/cluster/aws/config-default.sh).
+By default, the script will provision a new VPC and a 4 node k8s cluster in us-west-2 (Oregon). It'll also try to create or reuse
+a keypair called "kubernetes", and IAM profiles called "kubernetes-master" and "kubernetes-minion".  If these already exist, make
+sure you want them to be used here. You can override the variables defined in config-default.sh to change this behavior.
 
 Once the cluster is up, it will print the ip address of your cluster, this process takes about 5 to 10 minutes.
 
@@ -134,3 +136,6 @@ Take a look at [next steps](https://github.com/GoogleCloudPlatform/kubernetes/tr
 
 ### Cloud Formation [optional]
 There is a contributed [example](aws-coreos.md) from [CoreOS](http://www.coreos.com) using Cloud Formation.
+
+### Further reading
+Please see the [Kubernetes docs](https://github.com/GoogleCloudPlatform/kubernetes/tree/master/docs) for more details on administering and using a Kubernetes cluster.