mungers: fix preformat balance

Signed-off-by: Jess Frazelle <acidburn@google.com>

docs/user-guide/walkthrough/index.md

@@ -59,12 +59,14 @@ On most providers, the pod IPs are not externally accessible. The easiest way to
 
 Provided the pod IP is accessible, you should be able to access its http endpoint with wget on port 80:
 
-```shell{% raw %}
+```shell
+{% raw %}
 $ kubectl run busybox --image=busybox --restart=Never --tty -i --generator=run-pod/v1 --env "POD_IP=$(kubectl get pod nginx -o go-template='{{.status.podIP}}')"
 u@busybox$ wget -qO- http://$POD_IP # Run in the busybox container
 u@busybox$ exit # Exit the busybox container
 $ kubectl delete pod busybox # Clean up the pod we created with "kubectl run"
-{% endraw %}```
+{% endraw %}
+```
 
 Delete the pod by name:
 

docs/user-guide/walkthrough/k8s201.md

@@ -136,7 +136,8 @@ On most providers, the service IPs are not externally accessible. The easiest wa
 
 Provided the service IP is accessible, you should be able to access its http endpoint with wget on the exposed port:
 
-```shell{% raw %}
+```shell
+{% raw %}
 $ export SERVICE_IP=$(kubectl get service nginx-service -o go-template='{{.spec.clusterIP}}')
 $ export SERVICE_PORT=$(kubectl get service nginx-service -o go-template='{{(index .spec.ports 0).port}}')
 $ echo "$SERVICE_IP:$SERVICE_PORT"
@@ -144,7 +145,8 @@ $ kubectl run busybox  --generator=run-pod/v1 --image=busybox --restart=Never --
 u@busybox$ wget -qO- http://$SERVICE_IP:$SERVICE_PORT # Run in the busybox container
 u@busybox$ exit # Exit the busybox container
 $ kubectl delete pod busybox # Clean up the pod we created with "kubectl run"
-{% endraw %}```
+{% endraw %}
+```
 
 To delete the service by name: