Merge pull request #1297 from dgrisonnet/release-0.6.4

*: cut release v0.6.4

Author: k8s-ci-robot

README.md

@@ -132,7 +132,7 @@ Most useful flags:
 You can get a full list of Metrics Server configuration flags by running:
 
 ```shell
-docker run --rm registry.k8s.io/metrics-server/metrics-server:v0.6.3 --help
+docker run --rm registry.k8s.io/metrics-server/metrics-server:v0.6.4 --help
 ```
 
 ## Design

manifests/release/kustomization.yaml

@@ -5,5 +5,5 @@ bases:
 images:
   - name: gcr.io/k8s-staging-metrics-server/metrics-server
     newName: registry.k8s.io/metrics-server/metrics-server
-    newTag: v0.6.3
+    newTag: v0.6.4