README.md: update kubernetes prereq to 1.11.3+ (#1166)

* README.md: update kubernetes prereq to 1.11.3+

* doc/*: updating other references to minimum kubernetes version

* README.md: capitalize Kubernetes and remove extraneous period

Author: joelanford

README.md

@@ -42,8 +42,8 @@ The following workflow is for a new **Helm** operator:
 - [git][git_tool]
 - [go][go_tool] version v1.10+.
 - [docker][docker_tool] version 17.03+.
-- [kubectl][kubectl_tool] version v1.11.0+.
-- Access to a kubernetes v.1.11.0+ cluster.
+- [kubectl][kubectl_tool] version v1.11.3+.
+- Access to a Kubernetes v1.11.3+ cluster.
 
 ## Quick Start
 

doc/dev/testing/running-the-tests.md

@@ -15,7 +15,7 @@ local Kubernetes instance running on the machine.
 ### Remote Kubernetes Instance
 
 To run the tests on a remote cluster, the tests need access to a remote Kubernetes cluster
-running Kubernetes 1.11 or higher as well as a docker image repo to push the operator image to,
+running Kubernetes 1.11.3 or higher as well as a docker image repo to push the operator image to,
 such as [`quay.io`][quay]. Your kubeconfig must be located at `$HOME/.kube/config` and certain
 tests will not run on remote clusters. See [Running the Tests](#running-the-tests) for more details.
 

doc/user-guide.md

@@ -11,8 +11,8 @@ Guide][helm_user_guide]. The rest of this document will show how to program an o
 - [git][git_tool]
 - [go][go_tool] version v1.10+.
 - [docker][docker_tool] version 17.03+.
-- [kubectl][kubectl_tool] version v1.11.0+.
-- Access to a Kubernetes v.1.11.0+ cluster.
+- [kubectl][kubectl_tool] version v1.11.3+.
+- Access to a Kubernetes v1.11.3+ cluster.
 
 **Note**: This guide uses [minikube][minikube_tool] version v0.25.0+ as the local Kubernetes cluster and quay.io for the public registry.