Update iOS doc to point to examples README

[mergennachin]

No description provided.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/10429

• 📄 Preview Python docs built from this PR

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❌ 1 New Failure, 1 Cancelled Job, 5 Pending

As of commit cf9f3ba with merge base 3072890 ():

NEW FAILURE - The following job has failed:

• pull / unittest-editable / linux / linux-job (gh)
  backends/xnnpack/test/ops/test_conv1d.py::TestConv1d::test_qs8_conv1d_batchnorm_seq

CANCELLED JOB - The following job was cancelled. Please retry:

• trunk / test-models-linux-aarch64 (linear, xnnpack-quantization-delegation, linux.arm64.2xlarge) / linux-job (gh)

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[mergennachin]

@pytorchbot cherry-pick --onto release/0.6 -c docs

[pytorchbot]

Cherry picking #10429

Command git -C /home/runner/work/executorch/executorch cherry-pick -x -X theirs a82fa8fa1123dd6d69c67022a770d10c02ced681 returned non-zero exit code 1

Auto-merging backends/apple/mps/setup.md
Auto-merging docs/source/backends-mps.md
CONFLICT (modify/delete): docs/source/demo-apps-ios.md deleted in a82fa8fa1 (Update iOS doc to point to examples README (#10429)) and modified in HEAD.  Version HEAD of docs/source/demo-apps-ios.md left in tree.
Auto-merging docs/source/index.md
Auto-merging docs/source/using-executorch-building-from-source.md
error: could not apply a82fa8fa1... Update iOS doc to point to examples README (#10429)
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config set advice.mergeConflict false"

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