Improving GCE Integration Docs

[andrewsykim]

GCE integration docs should be updated as per https://github.com/kubernetes/enhancements/blob/master/keps/sig-cloud-provider/0019-cloud-provider-documentation.md

[andrewsykim]

/help

[k8s-ci-robot]

@andrewsykim:
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In response to this:

/help

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[andrewsykim]

/assign @cheftako @jagosan @fedebongio

[k8s-ci-robot]

@andrewsykim: GitHub didn't allow me to assign the following users: fedebongio.

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For more information please see the contributor guide

In response to this:

/assign @cheftako @jagosan @fedebongio

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[jagosan]

/assign @mistyhacks

[jagosan]

/cc @fedebongio

[andrewsykim]

/milestone v1.15
/priority critical-urgent

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-testing, kubernetes/test-infra and/or fejta.
/lifecycle stale

[andrewsykim]

/remove-lifecycle stale
/lifecycle frozen