Restore Read the Docs builds for PyProBound

[contromo]

Problem

The public latest documentation is stale. It still identifies itself as PyProBound 1.4.0 at revision 498a7d88, while v1.5.0 has been released and development has continued on main.

• Published site: https://pyprobound.readthedocs.io/en/latest/
• Public build history: https://app.readthedocs.org/api/v3/projects/pyprobound/builds/
• v1.5.0 release: https://github.com/BussemakerLab/PyProBound/releases/tag/v1.5.0

The Read the Docs API currently reports the newest build as commit 498a7d88a5b81f0054ecba4949795d90c77815f6, created August 19, 2024. No later builds are listed.

Expected behavior

Updates to main should trigger a successful build of the latest documentation, and the public site should reflect the current package version and source revision.

Suggested maintainer checks

• confirm the Read the Docs project is still connected to BussemakerLab/PyProBound
• verify the repository webhook/integration is installed and active
• confirm the latest version tracks main
• manually trigger a build after repairing the integration

Related work

PR #1 refreshes the v1.5 narrative documentation and fixes broken examples, links, and references. Merging that PR alone will not update the public site until the Read the Docs integration is restored.