Update README.md (#18896) (#18900)
Update README.md (#18896) (#18900)

Added additional scenarios when `archer-reset-cache` is appropriate to run and added more detail to the explanation of what this cache is.

Co-authored-by: rcookpalo <a9da3b49958b134322c5977505c32fa61d14a0c4@users.noreply.github.com>
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