simple nginx fixes

examples/simple-nginx.md

@@ -6,12 +6,9 @@ to Kubernetes and running your first containers on the cluster.
 
 ### Running a container (simple version)
 
-Assume that ```${KUBERNETES_HOME}``` points to the directory where you installed the kubernetes directory.
+From this point onwards, it is assumed that ```kubectl``` is on your path from one of the getting started guides.
 
-Once you have your cluster created you can use ```${KUBERNETES_HOME/kubernetes/cluster/kubectl.sh``` to access
-the kubernetes api.
-
-The `kubectl.sh` line below spins up two containers running
+The `kubectl` line below spins up two containers running
 [Nginx](http://nginx.org/en/) running on port 80:
 
 ```bash
@@ -19,12 +16,16 @@ kubectl run-container my-nginx --image=nginx --replicas=2 --port=80
 ```
 
 Once the pods are created, you can list them to see what is up and running:
-```base
+```bash
 kubectl get pods
 ```
 
-To stop the two replicated containers:
+You can also see the replication controller that was created:
+```bash
+kubectl get rc
+```
 
+To stop the two replicated containers, stop the replication controller:
 ```bash
 kubectl stop rc my-nginx
 ```
@@ -34,11 +35,11 @@ On some platforms (for example Google Compute Engine) the kubectl command can in
 to do this run:
 
 ```bash
-kubectl expose rc nginx --port=80 --create-external-load-balancer
+kubectl expose rc my-nginx --port=80 --create-external-load-balancer
 ```
 
 This should print the service that has been created, and map an external IP address to the service.
 
 ### Next: Configuration files
 Most people will eventually want to use declarative configuration files for creating/modifying their applications.  A [simplified introduction](simple-yaml.md)
-is given in a different document.
+is given in a different document.
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