[docs] Improve docs on updating API docs.

[rolfbjarne]

No description provided.

[Copilot]

Pull request overview

This PR improves the release/documentation workflow guidance for updating API reference docs by adding concrete links/placeholders for follow-up artifacts (PRs/tickets), making the process easier to track end-to-end during a release.

Changes:

• Add an example Azure DevOps ticket link for the “flip monikers from prerelease to live” step.
• Expand the release checklist with sub-items to capture required PR/ticket links for API diff, docs sync, and API/reference docs updates.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/update-api-docs.md	Adds a sample ticket link for the moniker flip step to make the final stage of the process more actionable.
docs/ReleaseCheckList.md	Adds nested checklist items prompting links to the relevant PRs/tickets for API diff, docs sync, and API/reference docs steps.