[None][docs] fix multimodal chat client path in trtllm-serve docs

[imitater-dou]

Summary

• trtllm-serve multimodal docs claimed only Chat API is supported, but the Sphinx literalinclude pointed at nonexistent examples/serve/openai_completion_client_for_multimodal.py.
• Retarget the include to openai_chat_client_for_multimodal.py and correct the surrounding “Completions API” wording to “Chat API” (matching the existing curl_chat_client_for_multimodal.sh example).

Test plan

• Confirmed examples/serve/openai_completion_client_for_multimodal.py is absent on main
• Confirmed examples/serve/openai_chat_client_for_multimodal.py exists
• Docs build / Sphinx literalinclude resolves

Dev Engineer Review

The documentation now references the existing openai_chat_client_for_multimodal.py example and uses “Chat API” terminology. No runtime behavior changes are expected. A Sphinx build remains recommended.

QA Engineer Review

No test changes.

Per-File QA Perspective

• docs/source/commands/trtllm-serve/trtllm-serve.rst: Verify that the example link resolves and that the Chat API wording matches the supported multimodal serving interface.

[imitater-dou]

Closing as superseded by #18967, which covers the same multimodal literalinclude path fix plus the base64 helper and bench doc link in the same file.

[coderabbitai]

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📥 Commits

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• docs/source/commands/trtllm-serve/trtllm-serve.rst

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Walkthrough

The multimodal API documentation now references the OpenAI Chat API client example. The performance benchmarking reference remains unchanged.

Changes

Multimodal Chat API documentation

Layer / File(s)	Summary
Update multimodal Chat API example reference docs/source/commands/trtllm-serve/trtllm-serve.rst	The documentation now identifies Chat API usage and references openai_chat_client_for_multimodal.py. The performance benchmarking link remains unchanged.

Priority: ⚪ Not assessed

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to e2b4d

Multimodal serving documentation now directs users to the supported Chat API client example. No current merge-blocking risk remains.

Suggested reviewers: bowenfu

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the documentation fix and the affected multimodal chat client path. It is concise and directly related to the changes.
Description check	✅ Passed	The description explains the documentation issue, the solution, and the verification performed. It identifies that the Sphinx documentation build remains pending, but the required summary and test inf…
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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