docs: finalizing Horizon installation docs

README.md

@@ -254,6 +254,13 @@ A simple example Subscription for callback delivery would look like this:
 
 If the creation, update and deletion of subscriptions is to be automated, it is advisable to install a service account with appropriate rights in the cluster namespace in advance. A corresponding example can be found here: [resources/rbac.yaml](https://github.com/telekom/pubsub-horizon/blob/main/resources/rbac.yaml)
 
+
+## Getting started
+
+If you want to learn more about how to install and run Horizon in a Kubernetes environment in general, visit: [Installing Horizon](https://github.com/telekom/pubsub-horizon/blob/main/docs/installation.md)  
+But if you want to get started right away with a non-productive local environment and try out Horizon, we recommend visting: [Local installation (Quickstart)](https://github.com/telekom/pubsub-horizon/blob/main/docs/quickstart.md). 
+
+
 ## Code of Conduct
 
 This project has adopted the [Contributor Covenant](https://www.contributor-covenant.org/) in version 2.1 as our code of conduct. Please see the details in our [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md). All contributors must abide by the code of conduct.

docs/installation.md

@@ -1,5 +1,12 @@
 # Installing Horizon
 
+## Preface
+
+This article describes more generally how Horizon can be installed and operated in a Kubernetes environment. It serves less as a step-by-step guide.  
+
+If you want to get started right away, we recommend visting: [Local installation (Quickstart)](https://github.com/telekom/pubsub-horizon/blob/main/docs/quickstart.md).  
+By following the instructions there, you can very quickly create a non-production environment locally on your system in which Horizon can be tested. 
+
 ## Prerequisites
 
 ### Kubernetes
@@ -247,8 +254,4 @@ Additionally you should set the correct image repository for each sub-product im
 
 ```
 helm upgrade -i -n horizon -f horizon-nonprod.yaml horizon ./horizon-all
-```
-
-## 4. Test
-
-*// work in progress*
+```

docs/quickstart.md

@@ -9,6 +9,20 @@ By following this quickstarter guide line by line, you will obtain an running in
 
 >*This guide has been written for and tested with k3d version v5.6.0, k3s version v1.27.4-k3s1, kubernetes version v1.27.4, and Helm version v3.14.1 on Microsoft Windows 10 (x64) with Docker Desktop version 4.28.0.*
 
+
+## System requirements
+
+* Microsoft Windows 10 (x64) or later
+* Docker Desktop installed
+* At least 6 GB free RAM recommended
+
+    If needed, limit the memory usage of Docker Desktop when creating/adjusting the `%USERPROFILE%/.wsl2config`:
+    ```
+    [wsl2]
+    memory=6GB
+    ````
+
+
 ## Prepare the environment
 
 * Install `scoop` CLI package manager: