removing Makefile and updating README

Signed-off-by: Andrew Steurer <[email protected]>

README.md

@@ -1,5 +1,44 @@
 # Overview
 
-This is 
+This is an educational resource designed to demonstrate various application and platform vulnerabilities within Kubernetes, as well as provide an opportunity to practice different hacking techniques.
 
-# Contributing
+## \*\*\*\*\**DISCLAIMER*\*\*\*\*\*
+
+This contains applications with a built-in security vulnerabilities. Please don't deploy the Helm charts into a production environment. There are also instructions showing how to exploit different application and platform vulnerabilities, so please don't use this to break any laws :grin:.
+
+## How to use this repository
+
+### Requirements
+
+- Latest version of [Helm](https://helm.sh/docs/intro/install/)
+- Latest version of [kubectl](https://kubernetes.io/docs/tasks/tools/#kubectl)
+- A fully-compliant Kubernetes distribution (i.e. microk8s, k3s, k3d) that is running on Linux/amd64, and is using containerd or Docker as the runtime.
+
+### Using the Helm repository
+
+You can add the Helm repository locally by running the below command:
+
+```sh
+helm repo add kube-hack https://kube-hack.github.io/charts
+helm repo update
+```
+
+If you would like to see the available charts in the `kube-hack` repository, run the below command:
+
+```sh
+helm search repo
+```
+
+### Navigating the linked repositories
+
+Linked below are repositories containing source code and walkthroughs for each vulnerability. Each will include an introductory `README.md` file and a `solutions` directory. If you would prefer to practice hacking an application without knowing too many details, follow the installation instructions in the root `README.md` file, and don't read the files in the solutions directory.
+
+# Linked Repositories
+
+## Application Vulnerabilities
+
+- [SQL Injection](https://github.com/kube-hack/sql-injection)
+
+## Platform Vulnerabilities
+
+More coming soon!