AKS use supported version of Kubernetes (#1385)

The most fresh patch version is 1.14.8 on AKS for westeurope cluster as in
example.

Co-authored-by: Mark Mandel <markmandel@google.com>

site/content/en/docs/Installation/Creating Cluster/aks.md

@@ -27,8 +27,8 @@ AKS_LOCATION=westeurope          # Azure region in which you'll deploy your AKS
 az group create --name $AKS_RESOURCE_GROUP --location $AKS_LOCATION
 
 # Create the AKS cluster - this might take some time. Type 'az aks create -h' to see all available options
-# The following command will create a four Node AKS cluster. Node size is Standard A1 v1 and Kubernetes version is 1.14.10. Plus, SSH keys will be generated for you, use --ssh-key-value to provide your values
-az aks create --resource-group $AKS_RESOURCE_GROUP --name $AKS_NAME --node-count 4 --generate-ssh-keys --node-vm-size Standard_A4_v2 --kubernetes-version 1.14.10
+# The following command will create a four Node AKS cluster. Node size is Standard A1 v1 and Kubernetes version is 1.14.8. Plus, SSH keys will be generated for you, use --ssh-key-value to provide your values
+az aks create --resource-group $AKS_RESOURCE_GROUP --name $AKS_NAME --node-count 4 --generate-ssh-keys --node-vm-size Standard_A4_v2 --kubernetes-version 1.14.8
 
 # Install kubectl
 sudo az aks install-cli