Update examples/models/qwen2_5/README.md

[DamonFool]

Update the path of 1_5b_config.json and append '\'.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12299

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 1 New Failure, 2 Unrelated Failures

As of commit 4a9fc1b with merge base 4321307 ():

NEW FAILURE - The following job has failed:

• pull / test-eval_llama-mmlu-linux / linux-job (gh)
  RuntimeError: Dataset scripts are no longer supported, but found mmlu_no_train.py

BROKEN TRUNK - The following jobs failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

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

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[swolchok]

LGTM, but I think @jackzhxng should take a quick look in case there's anything else that might've been missed that he has context on.

[jackzhxng]

Ty for catching these typos!

[swolchok]

https://github.com/pytorch/executorch/actions/runs/16170223355/job/45661183635?pr=12299 is failing on HUD, merging

[DamonFool]

Thanks @swolchok and @jackzhxng .