Add a central simple getting started guide with kubernetes guide.

Point several getting started guides at this doc.

examples/replication.yaml

@@ -0,0 +1,23 @@
+apiVersion: v1beta3
+kind: ReplicationController
+metadata:
+  name: nginx
+  namespace: default
+spec:
+  replicas: 3
+  selector:
+    app: nginx
+  template:
+    metadata:
+      name: nginx
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - image: nginx
+        imagePullPolicy: IfNotPresent
+        name: nginx
+        ports:
+        - containerPort: 80
+          protocol: TCP
+      restartPolicy: Always