readme: add instructions for running this image

README.md

@@ -22,3 +22,21 @@ $ make
 The bootable ISO image will be available in `output/images/rootfs.iso9660`.
 
 **Note**: This is currently intended to be a stop-gap solution. In the middleterm this is meant to be replaced by a "slim" version of a bootable CoreOS image.
+
+## Quickstart
+
+To use this ISO image in minikube, use the `--iso-url` flag in minikube:
+
+```
+$ minikube start --iso-url=https://github.com/coreos/minikube-iso/releases/download/v0.0.1/minikube-v0.0.1.iso
+```
+
+To test the minikube rkt container runtime support, make sure you have a locally built version of minikube including https://github.com/kubernetes/minikube/pull/511, and execute:
+
+```
+$ cd $HOME/src/minikube/src/k8s.io/minikube
+$ ./out/mininikube start \
+    --container-runtime=rkt \
+    --kubernetes-version=file://$HOME/minikube/src/k8s.io/minikube/out/localkube \
+    --iso-url=https://github.com/coreos/minikube-iso/releases/download/v0.0.1/minikube-v0.0.1.iso
+```