Typo in docs of custom resources after PR #1777

[gadisn]

What happened:
The new 'type' field for custom metrics, as added in #1777, should be under 'each', see:

https://github.com/kubernetes/kube-state-metrics/blob/master/pkg/customresourcestate/registry_factory.go#L65
https://github.com/kubernetes/kube-state-metrics/blob/master/pkg/customresourcestate/registry_factory.go#L136

The problem is in line 46 in https://github.com/kubernetes/kube-state-metrics/edit/master/docs/customresourcestate-metrics.md

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• kube-state-metrics version:
• Kubernetes version (use kubectl version):
• Cloud provider or hardware configuration:
• Other info:

[gadisn]

@chrischdi FYI

[chrischdi]

Thanks for reporting @gadisn 😄 👍 I opened a PR to fix the document