Re-word to "Create new cluster"

This makes this more consistent with the UI, and also makes more sense
to distinguish from "Add existing cluster"

doc/README.md

@@ -306,7 +306,7 @@ The following documentation relates to the DevOps **Configure** stage:
 | Configure Topics                                                                                                                   | Description                                                               |
 |:-----------------------------------------------------------------------------------------------------------------------------------|:--------------------------------------------------------------------------|
 | [Auto DevOps](topics/autodevops/index.md)                                                                                          | Automatically employ a complete DevOps lifecycle.                         |
-| [Create Kubernetes clusters](user/project/clusters/add_remove_clusters.md#add-new-cluster)                                         | Use Kubernetes and GitLab.                                                |
+| [Create Kubernetes clusters](user/project/clusters/add_remove_clusters.md#create-new-cluster)                                      | Use Kubernetes and GitLab.                                                |
 | [Executable Runbooks](user/project/clusters/runbooks/index.md)                                                                     | Documented procedures that explain how to carry out particular processes. |
 | [GitLab ChatOps](ci/chatops/README.md)                                                                                             | Interact with CI/CD jobs through chat services.                           |
 | [Installing Applications](user/project/clusters/index.md#installing-applications)                                                  | Deploy Helm, Ingress, and Prometheus on Kubernetes.                       |

doc/topics/autodevops/index.md

@@ -109,7 +109,7 @@ To make full use of Auto DevOps, you will need:
   To enable deployments, you will need:
 
   1. A [Kubernetes 1.12+ cluster](../../user/project/clusters/index.md) for the project. The easiest
-     way is to add a [new cluster using the GitLab UI](../../user/project/clusters/add_remove_clusters.md#add-new-cluster).
+     way is to create a [new cluster using the GitLab UI](../../user/project/clusters/add_remove_clusters.md#create-new-cluster).
      For Kubernetes 1.16+ clusters, there is some additional configuration for [Auto Deploy for Kubernetes 1.16+](#kubernetes-116).
   1. NGINX Ingress. You can deploy it to your Kubernetes cluster by installing
      the [GitLab-managed app for Ingress](../../user/clusters/applications.md#ingress),

doc/user/project/clusters/add_remove_clusters.md

@@ -14,7 +14,7 @@ Google Kubernetes Engine Integration. All you have to do is [follow this link](h
 
 ## Before you begin
 
-Before [adding a Kubernetes cluster](#add-new-cluster) using GitLab, you need:
+Before [adding a Kubernetes cluster](#create-new-cluster) using GitLab, you need:
 
 - GitLab itself. Either:
   - A GitLab.com [account](https://about.gitlab.com/pricing/#gitlab-com).
@@ -127,9 +127,9 @@ If you don't want to use GitLab Runner in privileged mode, either:
   1. Installing a Runner
      [using `docker+machine`](https://docs.gitlab.com/runner/executors/docker_machine.html).
 
-## Add new cluster
+## Create new cluster
 
-New clusters can be added using GitLab for:
+New clusters can be created using GitLab for:
 
 - [Google Kubernetes Engine (GKE)](add_gke_clusters.md).
 - [Amazon Elastic Kubernetes Service (EKS)](add_eks_clusters.md).

doc/user/project/clusters/runbooks/index.md

@@ -35,7 +35,7 @@ for an overview of how this is accomplished in GitLab!**
 To create an executable runbook, you will need:
 
 1. **Kubernetes** - A Kubernetes cluster is required to deploy the rest of the applications.
-    The simplest way to get started is to add a cluster using one of [GitLab's integrations](../add_remove_clusters.md#add-new-cluster).
+    The simplest way to get started is to add a cluster using one of [GitLab's integrations](../add_remove_clusters.md#create-new-cluster).
 1. **Helm Tiller** - Helm is a package manager for Kubernetes and is required to install
     all the other applications. It is installed in its own pod inside the cluster which
     can run the Helm CLI in a safe environment.
@@ -60,7 +60,7 @@ the components outlined above and the preloaded demo runbook.
 
 ### 1. Add a Kubernetes cluster
 
-Follow the steps outlined in [Add new cluster](../add_remove_clusters.md#add-new-cluster)
+Follow the steps outlined in [Create new cluster](../add_remove_clusters.md#create-new-cluster)
 to add a Kubernetes cluster to your project.
 
 ### 2. Install Helm Tiller, Ingress, and JupyterHub