Getting-started-guide cleanup.

Put a Prerequisites section in all the hosted gettting-started-guides.
Change how title and contents are formatted so they are not automatically
included in the ToC.  Tweak other section headers to improve ToCs.

docs/getting-started-guides/coreos/azure/README.md

@@ -1,10 +1,10 @@
-# Kubernetes on Azure with CoreOS and [Weave](http://weave.works)
+Kubernetes on Azure with CoreOS and [Weave](http://weave.works)
+---------------------------------------------------------------
 
-## Contents
+**Table of Contents**
 
-- [Kubernetes on Azure with CoreOS and [Weave](http://weave.works)](#kubernetes-on-azure-with-coreos-and-weavehttpweaveworks)
-    - [Contents](#contents)
     - [Introduction](#introduction)
+    - [Prerequisites](#prerequisites)
     - [Let's go!](#lets-go)
     - [Deploying the workload](#deploying-the-workload)
     - [Scaling](#scaling)
@@ -16,6 +16,9 @@
 
 In this guide I will demonstrate how to deploy a Kubernetes cluster to Azure cloud. You will be using CoreOS with Weave, which implements simple and secure networking, in a transparent, yet robust way. The purpose of this guide is to provide an out-of-the-box implementation that can ultimately be taken into production with little change. It will demonstrate how to provision a dedicated Kubernetes master and etcd nodes, and show how to scale the cluster with ease.
 
+### Prerequisites
+1. You need an Azure account.
+
 ## Let's go!
 
 To get started, you need to checkout the code: