Improve clarity in README.md

[akhilmukkara]

Removed unnecessary words for clarity in the README.

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

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[k8s-ci-robot]

Welcome @akhilmukkara!

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[schrej]

Thanks! You'll need to sign the CLA before we can merge this though.