Add Brunch and 'text-to-simulation' post links

[vilkinsons]

Added a new section for Brunch, updated the styling of post publication dates, and added a recent 'text-to-simulation' post.

[cursor]

PR Summary

Low Risk
Documentation-only README edits with no runtime, security, or data-handling impact.

Overview
Updates README documentation only: adds a Brunch reference link and a new Tooling → Brunch section (description plus GitHub/npm links), aligned with the other CLI/tool entries.

In Research → Writing, normalizes publication dates from DD Mon YYYY to YYYY-MM-DD and adds a link to Text to Simulation in Petrinaut (2026-05-25).

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