Update readme

Update outdated overview.

README.md

@@ -1,3 +1,30 @@
 # Kubernetes examples
 
-This repository contains examples used in the Selectel Kubernetes VPC blog post.
+This repository contains examples that can be used with Selectel Managed Kubernetes Service.
+
+Contents:
+
+```bash
+.
+├── LICENSE
+├── README.md
+├── deployments
+│   ├── README.md
+│   ├── nginx-1.17-replicas.yaml
+│   └── nginx-1.17-volume.yaml
+├── persistentvolumeclaims
+│   ├── README.md
+│   └── my-pv-claim.yaml
+├── services
+│   ├── README.md
+│   ├── nginx-loadbalancer.yaml
+│   └── nginx-nodeport.yaml
+└── storageclasses
+    ├── README.md
+    ├── fast.ru-1a.yaml
+    ├── fast.ru-1b.yaml
+    ├── fast.ru-2a.yaml
+    ├── fast.ru-2b.yaml
+    ├── fast.ru-3a.yaml
+    └── fast.ru-7a.yaml
+```