[FEATURE] Add Ibis example page

[John McCall (lowlydba)]

Closes #104 by adding an Example page for using Overture data with Ibis.

This change also converts the management of some sub-menus to be dynamically generated where the default order of alphabetical is sufficient (some sub-menus have intentional ordering).

[github-actions]

🗺️ OMF Docs previews are live!

🆕 Auto-gen schema site (beta)	https://staging.overturemaps.org/docs/pr/373/index.html
🗂️ Auto-gen schema ref	dev@201637c
🌍 Repo schema site	https://staging.overturemaps.org/docs/pr/373-no-autogen/index.html
🕐 Updated	May 05, 2026 15:15 UTC
📝 Commit	76f4a30

Auto-gen schema site is now available. This is an early preview of a future workflow where we will automatically generate and publish reference docs for the Overture Maps Format schema with every change to the schema repo.
The auto-gen schema site may contain incomplete or inaccurate information as we are still refining the generation process, so please compare against the repo schema site and refer to the linked commit for the most up-to-date source of truth.

Note

♻️ This preview updates automatically with each push to this PR.

[github-actions]

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[Copilot]

Pull request overview

Adds a new Docusaurus Example page showing how to query Overture GeoParquet data with Ibis + DuckDB, and updates sidebar management to use autogenerated ordering where alphabetical ordering is acceptable.

Changes:

• Add a new Ibis example page under docs/examples/.
• Convert the Data Mirrors and Examples sidebar sections to autogenerated items and set sidebar_position to keep overview pages first.
• Update the Examples landing page to render its list dynamically from the sidebar category.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
sidebars.js	Switch Data Mirrors and Examples to autogenerated sidebar items; keep schema index first.
docs/guides/index.mdx	Minor formatting/indentation adjustment in the guides list.
docs/getting-data/data-mirrors/index.mdx	Add sidebar_position: 0 to keep the overview first under autogenerated ordering.
docs/examples/index.mdx	Replace the hardcoded example links with a dynamically-generated list from the sidebar.
docs/examples/ibis.mdx	Add a new Ibis + DuckDB + Lonboard example page for querying Overture data.

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[Alex Iannicelli (atiannicelli)]

Looks good to me!