Update llama runner README.md

[jackzhxng]

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[pytorch-bot]

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❗ 1 Active SEVs

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• Large queue time for macos-m2-15 instances

❌ 1 New Failure

As of commit a028f2f with merge base e7d39c2 ():

NEW FAILURE - The following job has failed:

• pull / unittest-arm-backend-with-no-fvp (test_pytest_ops) / linux-job (gh)
  RuntimeError: Command docker exec -t 0f50bbdfe25d9aecbf0bd89308f8bd7dbf991c8bbb0f7ea2a3b3d31345b0d5cf /exec failed with exit code 1

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