Update k8s docs

doc/install/kubernetes/gitlab_chart.md

 # GitLab Helm Chart
-> These Helm charts are in beta. GitLab is working on a [cloud-native](http://docs.gitlab.com/omnibus/package-information/cloud_native.html) set of [Charts](https://gitlab.com/charts/helm.gitlab.io) which will replace these.
+> These Helm charts are in beta. GitLab is working on a [cloud-native set of Charts](https://gitlab.com/charts/helm.gitlab.io/blob/master/README.md) which will replace these.
 
 > Officially supported cloud providers are Google Container Service and Azure Container Service.
 
@@ -22,9 +22,7 @@ This chart includes the following:
 - [Persistent Volume](https://kubernetes.io/docs/concepts/storage/persistent-volumes/) provisioner support in the underlying infrastructure
 - The ability to point a DNS entry or URL at your GitLab install
 - The `kubectl` CLI installed locally and authenticated for the cluster
-- The Helm Client installed locally
-- The Helm Server (Tiller) already installed and running in the cluster, by running `helm init`
-- The GitLab Helm Repo [added to your Helm Client](index.md#add-the-gitlab-helm-repository)
+- The [Helm client](https://github.com/kubernetes/helm/blob/master/docs/quickstart.md) installed
 
 ## Configuring GitLab
 

doc/install/kubernetes/gitlab_omnibus.md

 # GitLab-Omnibus Helm Chart
-> These Helm charts are in beta. GitLab is working on a [cloud-native](http://docs.gitlab.com/omnibus/package-information/cloud_native.html) set of [Charts](https://gitlab.com/charts/helm.gitlab.io) which will replace these.
+> These Helm charts are in beta. GitLab is working on a [cloud-native set of Charts](https://gitlab.com/charts/helm.gitlab.io/blob/master/README.md) which will replace these.
 
 > Officially supported cloud providers are Google Container Service and Azure Container Service.
 
@@ -35,9 +35,7 @@ Terms:
 - An [external IP address](#networking-prerequisites)
 - A [wildcard DNS entry](#networking-prerequisites), which resolves to the external IP address
 - The `kubectl` CLI installed locally and authenticated for the cluster
-- The Helm Client installed locally
-- The Helm Server (Tiller) already installed and running in the cluster, by running `helm init`
-- The GitLab Helm Repo [added to your Helm Client](index.md#add-the-gitlab-helm-repository)
+- The [Helm client](https://github.com/kubernetes/helm/blob/master/docs/quickstart.md) installed
 
 ### Networking Prerequisites
 
@@ -126,7 +124,7 @@ Let's Encrypt limits a single TLD to five certificate requests within a single w
 ## Installing GitLab using the Helm Chart
 > You may see a temporary error message `SchedulerPredicates failed due to PersistentVolumeClaim is not bound` while storage provisions. Once the storage provisions, the pods will automatically restart. This may take a couple minutes depending on your cloud provider. If the error persists, please review the [prerequisites](#prerequisites) to ensure you have enough RAM, CPU, and storage.
 
-Ensure the GitLab repo has been added and re-initialize Helm:
+Add the GitLab Helm repository and initialize Helm:
 
 ```bash
 helm repo add gitlab https://charts.gitlab.io

doc/install/kubernetes/gitlab_runner_chart.md

 # GitLab Runner Helm Chart
-> These Helm charts are in beta. GitLab is working on a [cloud-native](http://docs.gitlab.com/omnibus/package-information/cloud_native.html) set of [Charts](https://gitlab.com/charts/helm.gitlab.io) which will replace these.
+> These Helm charts are in beta. GitLab is working on a [cloud-native set of Charts](https://gitlab.com/charts/helm.gitlab.io/blob/master/README.md) which will replace these.
 
 > Officially supported cloud providers are Google Container Service and Azure Container Service.
 
@@ -17,9 +17,7 @@ This chart configures the Runner to:
 - Your GitLab Server's API is reachable from the cluster
 - Kubernetes 1.4+ with Beta APIs enabled
 - The `kubectl` CLI installed locally and authenticated for the cluster
-- The Helm Client installed locally
-- The Helm Server (Tiller) already installed and running in the cluster, by running `helm init`
-- The GitLab Helm Repo added to your Helm Client. See [Adding GitLab Helm Repo](index.md#add-the-gitlab-helm-repository)
+- The [Helm client](https://github.com/kubernetes/helm/blob/master/docs/quickstart.md) installed
 
 ## Configuring GitLab Runner using the Helm Chart
 
@@ -190,7 +188,7 @@ certsSecretName: <SECRET NAME>
 
 ## Installing GitLab Runner using the Helm Chart
 
-Ensure the GitLab repo has been added and re-initialize Helm:
+Add the GitLab Helm repository and initialize Helm:
 
 ```bash
 helm repo add gitlab https://charts.gitlab.io

doc/install/kubernetes/index.md

 # Installing GitLab on Kubernetes
-> These Helm charts are in beta. GitLab is working on a [cloud-native](http://docs.gitlab.com/omnibus/package-information/cloud_native.html) set of [Charts](https://gitlab.com/charts/helm.gitlab.io) which will replace these.
+> These Helm charts are in beta. GitLab is working on a [cloud-native set of Charts](https://gitlab.com/charts/helm.gitlab.io/blob/master/README.md) which will replace these.
 
 > Officially supported cloud providers are Google Container Service and Azure Container Service.
 
@@ -14,25 +14,6 @@ You can report any issues related to GitLab's Helm Charts at
 https://gitlab.com/charts/charts.gitlab.io/issues.
 Contributions and improvements are also very welcome.
 
-## Prerequisites
-
-To use the charts, the Helm tool must be installed and initialized. The best
-place to start is by reviewing the [Helm Quick Start Guide][helm-quick].
-
-## Add the GitLab Helm repository
-
-Once Helm has been installed, the GitLab chart repository must be added:
-
-```bash
-helm repo add gitlab https://charts.gitlab.io
-```
-
-After adding the repository, Helm must be re-initialized:
-
-```bash
-helm init
-```
-
 ## Using the GitLab Helm Charts
 
 GitLab makes available three Helm Charts.
@@ -44,5 +25,4 @@ GitLab makes available three Helm Charts.
 We are also working on a new set of [cloud native Charts](https://gitlab.com/charts/helm.gitlab.io) which will eventually replace these.
 
 [chart]: https://github.com/kubernetes/charts
-[helm-quick]: https://github.com/kubernetes/helm/blob/master/docs/quickstart.md
 [helm]: https://github.com/kubernetes/helm/blob/master/README.md