Instructions to add Grafana dashboard do not work. The proposed
functions are wrong, according to
[grafana.libsonnet](https://github.com/brancz/kubernetes-grafana/blob/master/grafana/grafana.libsonnet)
`dashboards` and `rawDashboards` should be used in `grafana+::`
field.

This PR updates the existing documentation and fixes minor typos.

Fixes #455.

https://github.com/coreos/kube-prometheus/pull/425#pullrequestreview-368779890

Review comment: https://github.com/coreos/kube-prometheus/pull/425#discussion_r387494885

Signed-off-by: yeya24 <yb532204897@gmail.com>

Pick up new alerts for unreachable nodes.

* Avoid race condition when deploying quickstart example

The namespace and CRD creation must happen before any dependent objects
are created.  So we can put these in a separate directory (manifest/setup)
so they can be created before the other objects.

Some minor updates to the README and added a couple of scripts
for the quickstarts

Update travis script to avoid race condition

Signed-off-by: Paul Gier <pgier@redhat.com>

* simplify the example quickstart script and improve readme

Signed-off-by: Paul Gier <pgier@redhat.com>

* increase minikube memory to 6g for quickstart example

Signed-off-by: Benjamin <benjamin@yunify.com>

Signed-off-by: Benjamin <benjamin@yunify.com>

* [Modified] Makefile to run kustomize.jsonnet
* [Modified] Moved kustomization from example.jsonnet to
examples/kustomize.jsonnet
* [Modified] kustomization file to land at root of kube-prometheus so
current users can continue to use `kubectl apply -f manifests`

Co-Authored-By: BrianChristie <brian@brc007.com>