docs(cli): fix to stable on cli instructions and date of v2.21.5

Signed-off-by: Cryptophobia <aouzounov@gmail.com>

README.md

@@ -6,7 +6,7 @@
 
 |![](https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/Warning.svg/156px-Warning.svg.png) | Hephy Workflow is the open source fork of Deis Workflow.<br />Please [read the announcement][] for more detail. |
 |---:|---|
-| 04/23/2019 | Hephy Workflow [v2.21.5][] patch release |
+| 04/23/2020 | Hephy Workflow [v2.21.5][] patch release |
 | 12/31/2019 | Hephy Workflow [v2.21.4][] patch release |
 | 09/11/2019 | Hephy Workflow [v2.21.3][] patch release |
 | 08/11/2019 | Hephy Workflow [v2.21.2][] patch release |

src/quickstart/install-cli-tools.md

@@ -5,7 +5,7 @@ Use the CLI to create and configure and manage applications.
 
 Install the latest `deis` client for Linux or Mac OS X with:
 
-    $ curl -sSL https://raw.githubusercontent.com/teamhephy/workflow-cli/master/install-v2.sh | bash -s v2.20.0
+    $ curl -sSL https://raw.githubusercontent.com/teamhephy/workflow-cli/master/install-v2.sh | bash -s stable
 
 The installer places the `deis` binary in your current directory, but you
 should move it somewhere in your $PATH:
@@ -19,7 +19,7 @@ should move it somewhere in your $PATH:
 Check your work by running `deis version`:
 
     $ deis version
-    v2.17.0
+    v2.21.5
 
 !!! note
     Note that version numbers may vary as new releases become available

src/quickstart/provider/minikube/install-minikube.md

@@ -27,7 +27,7 @@ $ helm repo add hephy https://charts.teamhephy.com/
 Now that Helm is installed and the repository has been added, install Workflow by running:
 
 ```
-$ helm install hephy/workflow --namespace deis --set router.host_port.enabled=true
+$ helm install hephy/workflow --namespace deis --set global.use_rbac=true,router.host_port.enabled=true
 ```
 
 Helm will install a variety of Kubernetes resources in the `deis` namespace.