docs(extraction): move Starter kits to examples/README.md (#2266 follow-up)

[kheiss-uwzoo]

Summary

Follow-up to #2266 per @randerzander review: delete the duplicate extraction/starter-kits.md doc page, move its content to examples/README.md, and link the TOC and legacy redirects directly to that GitHub README.

• Add examples/README.md with starter-kit notebook links (docs cross-links use published docs.nvidia.com URLs; in-repo notebooks use relative paths).
• Remove docs/docs/extraction/starter-kits.md.
• Update docs/mkdocs.yml nav (Starter kits) and redirects (notebooks, starter-kits, integrations-langchain-llamaindex-haystack) to the GitHub examples README.
• Update extraction cross-links in overview, concepts, deployment-options, getting-started-about, workflow-e2e-blueprints, and agentic-retrieval-concept.

Test plan

• mkdocs build -f docs/mkdocs.yml --strict — redirects for legacy paths resolve to GitHub README
• Sidebar Starter kits opens GitHub examples/README.md
• /extraction/starter-kits/ and /extraction/notebooks/ redirect to GitHub README after republish
• Overview and related cross-links resolve to GitHub README

Related

• fix(docs): repair Starter kits redirect loop breaking docs.nvidia.com links after PR 2195 #2266 — repair Starter kits redirect loop (merged)
• PR remove custom-metadata.md; canonical path is vdbs + notebooks #2195 — doc path consolidation

[greptile-apps]

Greptile Summary

This PR completes the follow-up from #2266 by deleting docs/docs/extraction/starter-kits.md, replacing it with a new examples/README.md in the repo root, and updating all cross-links and MkDocs redirects to point at the GitHub file.

• Deleted docs/docs/extraction/starter-kits.md; content is preserved in the new examples/README.md, with docs-site links converted to docs.nvidia.com URLs and notebook links kept as relative paths (all four .ipynb files verified to exist in examples/).
• Updated docs/mkdocs.yml nav and four legacy redirects (notebooks/index.md, notebooks.md, starter-kits.md, integrations-langchain-llamaindex-haystack.md) to the GitHub README; the external-URL redirect pattern is already established elsewhere in the same plugin block.
• Updated six extraction doc pages with the new cross-link; deployment-options.md also condenses its ffmpeg/Kubernetes paragraph into a reference to audio-video.md, where that content now lives in full.

Confidence Score: 5/5

Safe to merge — pure documentation reorganization with no code changes; all notebook links in the new README resolve to existing files.

All changed files are documentation only. The new examples/README.md is self-consistent, its relative notebook links point to files that exist in examples/, and the external redirect pattern in mkdocs.yml mirrors what was already in use for other legacy paths. The only wrinkle is a version-pinned Helm README URL (26.05) in the air-gapped warning that is inconsistent with every other Helm link in the same file — a cosmetic issue that does not affect functionality.

The 26.05-pinned Helm README URL inside the air-gapped warning in docs/docs/extraction/deployment-options.md is inconsistent with the main-branch links used everywhere else in that file.

Important Files Changed

Filename	Overview
examples/README.md	New GitHub README consolidating starter-kit notebook links; relative .ipynb paths all resolve correctly to existing files in examples/
docs/docs/extraction/starter-kits.md	Deleted; content migrated to examples/README.md and legacy path covered by a new redirect in mkdocs.yml
docs/mkdocs.yml	Nav entry and four redirects updated to point to the GitHub examples/README.md; external-URL redirects are already used elsewhere in the same plugin block, so the pattern is established
docs/docs/extraction/deployment-options.md	Cross-links updated; ffmpeg/Kubernetes paragraph condensed (content preserved in audio-video.md); air-gapped warning now links to a 26.05-pinned Helm README URL while the Related section below still uses main — inconsistent within the same file
docs/docs/extraction/overview.md	Starter-kits link updated to GitHub URL; a new docs.nvidia.com bullet for prerequisites/deployment added
docs/docs/extraction/concepts.md	Single cross-link update from starter-kits.md to the GitHub examples README
docs/docs/extraction/getting-started-about.md	Notebooks link updated to GitHub URL; Helm chart bullet extended with a docs.nvidia.com link for published charts
docs/docs/extraction/workflow-e2e-blueprints.md	Single cross-link update from starter-kits.md to the GitHub examples README
docs/docs/extraction/agentic-retrieval-concept.md	Single cross-link update from starter-kits.md to the GitHub examples README

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["User visits legacy URL\n(starter-kits, notebooks,\nintegrations-langchain…)"] -->|mkdocs-redirects| B["GitHub: examples/README.md"]
    C["MkDocs nav\n'9. Integrations & ecosystem\n→ Starter kits'"] --> B
    D["Cross-links in 6 extraction docs\n(overview, concepts, deployment-options,\ngetting-started-about,\nworkflow-e2e-blueprints,\nagentic-retrieval-concept)"] --> B
    B --> E["Relative .ipynb links\n(examples/*.ipynb — verified present)"]
    B --> F["docs.nvidia.com links\n(workflow, vdbs, CLI quickstart)"]
    B --> G["Absolute GitHub links\n(evaluation/bo767_recall.ipynb,\nEnterprise RAG Blueprint)"]

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flowchart TD
    A["User visits legacy URL\n(starter-kits, notebooks,\nintegrations-langchain…)"] -->|mkdocs-redirects| B["GitHub: examples/README.md"]
    C["MkDocs nav\n'9. Integrations & ecosystem\n→ Starter kits'"] --> B
    D["Cross-links in 6 extraction docs\n(overview, concepts, deployment-options,\ngetting-started-about,\nworkflow-e2e-blueprints,\nagentic-retrieval-concept)"] --> B
    B --> E["Relative .ipynb links\n(examples/*.ipynb — verified present)"]
    B --> F["docs.nvidia.com links\n(workflow, vdbs, CLI quickstart)"]
    B --> G["Absolute GitHub links\n(evaluation/bo767_recall.ipynb,\nEnterprise RAG Blueprint)"]

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_{Reviews (3): Last reviewed commit: "Merge branch 'main' into docs/starter-ki..." | Re-trigger Greptile}