A few install doc tweeks (#3634)

* A few install doc tweeks

* improve description

content/docs/setup/kubernetes/_index.md

@@ -22,7 +22,7 @@ However, the basic flow is the same regardless of platform:
 1. [Review the pod requirements](/docs/setup/kubernetes/prepare/requirements/)
 1. [Prepare your platform for Istio](/docs/setup/kubernetes/prepare/platform-setup/)
 1. [Download the Istio release](/docs/setup/kubernetes/download/)
-1. [Install Istio on your platform](/docs/setup/kubernetes/)
+1. [Install Istio on your platform](/docs/setup/kubernetes/install)
 
 Whether or not you intend to use Istio in production is an important consideration when
 deciding which installation flow to follow.
@@ -32,7 +32,7 @@ deciding which installation flow to follow.
 To quickly test Istio's features, you can:
 
 - Install Istio [on Kubernetes without Helm](/docs/setup/kubernetes/install/kubernetes/)
-- Configure Istio's **minimal** profile using the [helm installation guide](/docs/setup/kubernetes/install/helm/)
+- Configure Istio's **minimal** or **demo** profile using the [helm installation guide](/docs/setup/kubernetes/install/helm/)
 
 ## Installing Istio for production
 

content/docs/setup/kubernetes/install/kubernetes/index.md

@@ -8,7 +8,7 @@ aliases:
 ---
 
 Follow this flow to quickly evaluate Istio in a Kubernetes cluster on any platform.
-This flow installs a preconfigured Istio **demo profile** using basic Kubernetes commands
+This flow installs a preconfigured Istio **demo** profile using basic Kubernetes commands
 without needing to download or install [Helm](https://github.com/helm/helm).
 
 {{< tip >}}
@@ -50,7 +50,7 @@ This permits customization of Istio to operator specific requirements.
     $ for i in install/kubernetes/helm/istio-init/files/crd*yaml; do kubectl apply -f $i; done
     {{< /text >}}
 
-1. Install one of the following variants of the `demo profile`:
+1. Install one of the following variants of the **demo** profile:
 
 {{< tabset cookie-name="profile" >}}
 
@@ -188,7 +188,7 @@ The uninstall deletes the RBAC permissions, the `istio-system` namespace, and
 all resources hierarchically under it. It is safe to ignore errors for
 non-existent resources because they may have been deleted hierarchically.
 
-* Uninstall the `demo profile` corresponding to the mutual TLS mode you enabled:
+* Uninstall the **demo** profile corresponding to the mutual TLS mode you enabled:
 
 {{< tabset cookie-name="profile" >}}
 

content/docs/setup/kubernetes/prepare/platform-setup/_index.md

@@ -1,5 +1,5 @@
 ---
-title: Platform-specific Setup
+title: Platform Setup
 description: How to prepare various Kubernetes platforms before installing Istio.
 weight: 10
 keywords: [platform-setup]

content/docs/setup/kubernetes/prepare/requirements/index.md

@@ -1,6 +1,6 @@
 ---
-title: Requirements for Pods and Services
-description:  Describes the requirements for Kubernetes pods and services to run Istio.
+title: Pods and Services
+description:  Prepare your Kubernetes pods and services to run in an Istio-enabled cluster.
 weight: 5
 keywords: [kubernetes,sidecar,sidecar-injection]
 ---