Add tables of contents to getting started guides.

docs/getting-started-guides/gce.md

@@ -3,20 +3,22 @@
 
 **Table of Contents**
 
-  - [Before you start](#before-you-start)
-  - [Prerequisites](#prerequisites)
-  - [Starting a cluster](#starting-a-cluster)
-  - [Installing the kubernetes command line tools on your workstation](#installing-the-kubernetes-command-line-tools-on-your-workstation)
-  - [Getting started with your cluster](#getting-started-with-your-cluster)
-    - [Inspect your cluster](#inspect-your-cluster)
-    - [Run some examples](#run-some-examples)
-  - [Tearing down the cluster](#tearing-down-the-cluster)
-  - [Customizing](#customizing)
-  - [Troubleshooting](#troubleshooting)
-    - [Project settings](#project-settings)
-    - [Cluster initialization hang](#cluster-initialization-hang)
-    - [SSH](#ssh)
-    - [Networking](#networking)
+    - [Getting started on Google Compute Engine](#getting-started-on-google-compute-engine)
+        - [Before you start](#before-you-start)
+        - [Prerequisites](#prerequisites)
+        - [Starting a cluster](#starting-a-cluster)
+        - [Installing the kubernetes command line tools on your workstation](#installing-the-kubernetes-command-line-tools-on-your-workstation)
+        - [Getting started with your cluster](#getting-started-with-your-cluster)
+            - [Inspect your cluster](#inspect-your-cluster)
+            - [Run some examples](#run-some-examples)
+        - [Tearing down the cluster](#tearing-down-the-cluster)
+        - [Customizing](#customizing)
+        - [Troubleshooting](#troubleshooting)
+            - [Project settings](#project-settings)
+            - [Cluster initialization hang](#cluster-initialization-hang)
+            - [SSH](#ssh)
+            - [Networking](#networking)
+
 
 The example below creates a Kubernetes cluster with 4 worker node Virtual Machines and a master Virtual Machine (i.e. 5 VMs in your cluster). This cluster is set up and controlled from your workstation (or wherever you find convenient).