Docs: Adds documentation pages

[volatilemolotov]

Adds documentation pages for the documentation site

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: volatilemolotov
Once this PR has been reviewed and has the lgtm label, please assign soltysh for approval. For more information see the Code Review Process.

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[k8s-ci-robot]

Hi @volatilemolotov. Thanks for your PR.

I'm waiting for a github.com member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[janetkuo]

/ok-to-test

[janetkuo]

Please consolidate common doc. We already have files like CONTRIBUTING.md, README.md, and examples/.

[janetkuo]

Please source it from the examples/ in this repo.