Add HOW TO deploy monitoring services in Kubernetes

These instructions will help the user deploy both Prometheus, Grafana
and some default dashboards to visualize the status, performance and
much more of both the Kubernetes cluster and the Socks Shop

Author: Carlos León

_includes/doc_menu.html

@@ -42,4 +42,9 @@
       <li><a href="/microservices-demo/deployment/apcera.html">Apcera</a></li>
     </ul>
   </li>
+  <li><span>Monitoring</span>
+    <ul>
+      <li><a href="/microservices-demo/deployment/monitoring-kubernetes.html">Kubernetes</a></li>
+    </ul>
+  </li>
 </ul>

deployment/monitoring-kubernetes.md

@@ -0,0 +1,28 @@
+---
+layout: default
+deployDoc: true
+---
+
+## Kubernetes
+To deploy Prometheus & Grafana and to setup all the nice graphs that we got ready
+for you, simply:
+
+```
+$ kubectl create -f ./deploy/kubernetes/manifests-monitoring
+```
+
+Assuming that used `minikube` to deploy your Kubernetes cluster, to get the URL of
+the services:
+
+
+#### Prometheus
+```
+$ minikube service list | grep prometheus
+| monitoring  | prometheus           | http://192.168.99.100:31090 |
+```
+
+#### Grafana
+```
+$ minikube service list | grep grafana
+| monitoring  | grafana              | http://192.168.99.100:31300 |
+```