docs: replace make deploy-demo command with a link to the cloud-native-demo repo (#476)

Signed-off-by: James Milligan <[email protected]>

Author: james-milligan

docs/getting_started.md

@@ -6,26 +6,8 @@ Once you [understand the basic concepts](./concepts.md) and [install the operato
 
 ### Deploy the demo app
 
-To get started with the operator you can deploy our e2e example using the [playground app](https://github.com/open-feature/playground)
-To deploy the example, run the following command:
-```sh
-make deploy-demo
-```
-This command deploys the demo app to the `open-feature-demo` namespace, and once it enters a `Ready` state, will start port-forwarding to the deployed `service/open-feature-demo-service`. Once the log line `Forwarding from 127.0.0.1:30000 -> 30000` is printed, the application is available at [`127.0.0.1:30000`](127.0.0.1:30000). 
-
-To update the flag configurations first request the deployed yaml from the cluster, writing it to a file:
-```
-kubectl get featureflagconfigurations.core.openfeature.dev end-to-end -o yaml > my-flag-configuration.yaml
-```
-This file can then be edited and re-applied to the cluster, resulting in the changes being reflected by the demo application. As an example, change the `defaultVariant` for the `hex-color` flag from `"blue"` to `"green"`. 
-Run `kubectl apply -f my-flag-configuration.yaml` to apply these changes to the cluster, this will result in the background color of the demo app changing to green when the `flagd` provider is selected.
-
-### Uninstall the demo app
-
-To uninstall the demo app from your cluster, run the following command:
-```
-make delete-demo-deployment
-```
+To get started with the operator you can deploy our e2e example using the [cloud-native-demo](https://github.com/open-feature/cloud-native-demo), showcasing an integration with ArgoCD to control feature flags in a GitOps environment.  
+Alternatively, you can deploy your own application following the guide below.
 
 ## Deploy your own application