Publishing updates

[zredeaux07]

Made the following changes:

• Updated Sphinx HTML theme and options
• Added initial release notes
• Added release notes to documentation

[greptile-apps]

Greptile Summary

The PR updates the documentation publishing setup and resolves the previously reported build-configuration problems.

• Migrates documentation from the Read the Docs theme to NVIDIA’s Sphinx theme.
• Adds a version switcher, documentation archive, and initial release-notes page.
• Updates documentation CI with the required theme and Markdown dependencies.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
.github/workflows/docs.yml	Installs the NVIDIA theme, PyData theme, and MyST parser required by the updated Sphinx configuration.
docs/conf.py	Configures the NVIDIA theme, Markdown sources, version switcher, repository link, and existing extra-path asset.
docs/index.rst	Adds the now-existing Markdown release-notes document to the Getting Started toctree.
docs/release_notes.md	Supplies the release-notes source document required by the updated toctree.
docs/versions1.json	Defines the current and archived documentation destinations consumed by the theme switcher.
docs/documentation-archive.rst	Adds an orphan archive page linking to documentation for previous releases.

_{Reviews (11): Last reviewed commit: "Re-adding release notes for vX.YZ" | Re-trigger Greptile}

[ksivaman]

@zredeaux07 Thanks for making the review changes! The generated docs look good to me. @mckimn please take a look at the artifacts.

@zredeaux07 Could you sign-off all your commits to pass the DCO check? Thanks!

[zredeaux07]

signed off on comments.

[greptile-apps]

Release notes target is missing

When the documentation workflow builds this toctree, release_notes.md does not resolve to an existing source document, causing a Sphinx warning that SPHINXOPTS="-W" turns into a failed documentation build.

Knowledge Base Used: Verification and CI matrix

[greptile-apps]

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