docs: apply k8s style guide to HRQ quickstart example

[agilgur5]

Summary

Apply more of k8s style guide to HRQ quickstart example

• Follow-up to docs: improve grammar and simplify HRQ examples  #315 with some style changes

Details

• consistently use present tense and active voice
• consistently address the reader as "you"

[k8s-ci-robot]

Hi @agilgur5. Thanks for your PR.

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[agilgur5]

@adrianludwin could you review this docs PR as well?

[rjbez17]

/ok-to-test
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: agilgur5, rjbez17

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[rjbez17]

Looks like there are some merge conflicts. When you have a few, mind fixing them up and we can get this merged in. Thanks!

[agilgur5]

@rjbez17 rebased and fixed all merge conflicts; needs a new LGTM now

[adrianludwin]

Thanks for this change!

/lgtm