Fix typos in docs

[pytorchbot]

Summary: As title

Differential Revision: D79135049

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12969

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❌ 1 New Failure, 2 Cancelled Jobs

As of commit 2e58cb2 with merge base de24489 ():

NEW FAILURE - The following job has failed:

• pull / test-eval_llama-mmlu-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 0204cc431bf78433e6343b0f8673b84f4831a754edbb2b2179850f8379ed8f38 /exec failed with exit code 1

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• pull / test-models-linux (mobilebert, portable, linux.2xlarge) / linux-job (gh)
  ##[error]The operation was canceled.
• pull / test-models-linux (mobilebert, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh)
  ##[error]The operation was canceled.

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