Fix "Red Hat" spelling in implementation docs.

[coderbydesign]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
Update Red Hat reference in docs.

Does this PR introduce a user-facing change?:

NONE

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[k8s-ci-robot]

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[k8s-ci-robot]

Hi @coderbydesign. Thanks for your PR.

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[LiorLieberman]

Thanks @coderbydesign! can you make the CLA bot happy?