Update README to remove redundant list of strategies

[a7i]

Per #610 (comment)

[k8s-ci-robot]

Hi @a7i. Thanks for your PR.

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[a7i]

/assign @seanmalloy

[damemi]

/ok-to-test
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: a7i, damemi

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