Clarify image pull policy regarding digests

[candrews]

If the digest is specified, the default is imagePullPolicy is IfNotPresent (the same as if a tag is provided).

[linux-foundation-easycla]

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• ✅ login: candrews / name: Craig Andrews (28c9534)

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/lifecycle stale

[candrews]

This is a really simple documentation update... can it be please reviewed?

[tengqm]

/approve

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[vaibhav2107]

/remove-lifecycle stale

[windsonsea]

/lgtm

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LGTM label has been added.

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Git tree hash: 308177199b0e432054fccb614343a1ba5d87e79c