🌱 Add back info about Apple Silicon support to the README ( prior release )

[camilamacedo86]

Description

Reverts #2848
Prior to do the release

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: camilamacedo86

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@camilamacedo86: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubebuilder-e2e-k8s-1-19-16	abe5416	link	false	/test pull-kubebuilder-e2e-k8s-1-19-16

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