Update index.md (#5858)

* Update dns-pod-service.md

fix format

* Update index.md

Fix format.

docs/concepts/services-networking/dns-pod-service.md

@@ -343,6 +343,7 @@ kubectl get ep kube-dns --namespace=kube-system
 ```
 
 You should see something like:
+
 ```
 NAME       ENDPOINTS                       AGE
 kube-dns   10.180.3.17:53,10.180.3.17:53    1h

docs/getting-started-guides/mesos/index.md

@@ -304,6 +304,7 @@ Address 1: 10.10.10.10
 Name:      kubernetes
 Address 1: 10.10.10.1
 ```
+
 ## Support Level