Update documentation

[jose5918]

Just updating docs on my first passthrough since I was going through them anyway.

Changes made:

• Specify values.yaml file location
• Fix broken links
• Fix spelling
• Update tree

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This change is 

[k8s-ci-robot]

Hi @jose5918. Thanks for your PR.

I'm waiting for a kubernetes or tensorflow 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.

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[coveralls]

Coverage decreased (-0.1%) to 31.51% when pulling 63e05e2 on jose5918:readme_update into 74a958b on tensorflow:master.

[coveralls]

Coverage decreased (-0.1%) to 31.51% when pulling 63e05e2 on jose5918:readme_update into 74a958b on tensorflow:master.

[jlewi]

Thanks. Looks like the relative links broke when we moved the files around.