remove spurious brackets

docs/08-bootstrapping-kubernetes-controllers.md

@@ -37,22 +37,18 @@ wget -q --show-progress --https-only --timestamping \
 Install the Kubernetes binaries:
 
 ```
-{
 chmod +x kube-apiserver kube-controller-manager kube-scheduler kubectl
 sudo mv kube-apiserver kube-controller-manager kube-scheduler kubectl /usr/local/bin/
-}
 ```
 
 ### Configure the Kubernetes API Server
 
 ```
-{
 sudo mkdir -p /var/lib/kubernetes/
 
 sudo mv ca.pem ca-key.pem kubernetes-key.pem kubernetes.pem \
   service-account-key.pem service-account.pem \
   encryption-config.yaml /var/lib/kubernetes/
-}
 ```
 
 The instance internal IP address will be used to advertise the API Server to members of the cluster. Retrieve the internal IP address for the current compute instance:
@@ -190,11 +186,9 @@ EOF
 ### Start the Controller Services
 
 ```
-{
 sudo systemctl daemon-reload
 sudo systemctl enable kube-apiserver kube-controller-manager kube-scheduler
 sudo systemctl start kube-apiserver kube-controller-manager kube-scheduler
-}
 ```
 
 > Allow up to 10 seconds for the Kubernetes API Server to fully initialize.
@@ -227,12 +221,10 @@ EOF
 ```
 
 ```
-{
 sudo mv kubernetes.default.svc.cluster.local \
   /etc/nginx/sites-available/kubernetes.default.svc.cluster.local
 
 sudo ln -s /etc/nginx/sites-available/kubernetes.default.svc.cluster.local /etc/nginx/sites-enabled/
-}
 ```
 
 ```
@@ -351,7 +343,6 @@ In this section you will provision an external load balancer to front the Kubern
 Create the external load balancer network resources:
 
 ```
-{
 KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
   --region $(gcloud config get-value compute/region) \
   --format 'value(address)')
@@ -377,7 +368,6 @@ Create the external load balancer network resources:
   --ports 6443 \
   --region $(gcloud config get-value compute/region) \
   --target-pool kubernetes-target-pool
-}
 ```
 
 ### Verification