update image tags to new version

Author: brancz

README.md

@@ -18,7 +18,7 @@ the raw metrics.
 
 ## Container Image
 
-The latest container image can be found at `gcr.io/google_containers/kube-state-metrics:v0.4.1`.
+The latest container image can be found at `gcr.io/google_containers/kube-state-metrics:v0.5.0`.
 
 ## Metrics
 

kubernetes/kube-state-metrics-deployment.yaml

@@ -13,7 +13,7 @@ spec:
       serviceAccountName: kube-state-metrics
       containers:
       - name: kube-state-metrics
-        image: gcr.io/google_containers/kube-state-metrics:v0.4.1
+        image: gcr.io/google_containers/kube-state-metrics:v0.5.0
         ports:
         - name: http-metrics
           containerPort: 8080