docs: add project README

README.md

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+# AI For Dummies
+
+A lightweight, presentation-style field guide to AI-assisted engineering.
+
+It explains how to combine a strong planning/review model with faster workers,
+reusable skills, subagent handoffs, Git worktrees, and explicit verification.
+
+## Run locally
+
+This is a dependency-free static site:
+
+```bash
+python3 -m http.server 4173
+```
+
+Then open <http://localhost:4173>.
+
+Verify the content and interaction contracts with:
+
+```bash
+npm run verify
+```
+
+## Project structure
+
+- `index.html` — presentation content and semantic structure
+- `styles.css` — editorial visual system and responsive layout
+- `app.js` — small workflow-phase interaction
+- `docs/references/` — bundled research sources and notes
+- `GATES.md` — acceptance ledger for the project
+
+## Publishing
+
+The Gitea instance has a Pages Server configured to publish a repository’s
+`pages` branch under `pages.marcospaulo.dev.br`. The intended site address is:
+
+<https://ai-for-dummies.netcracker.pages.marcospaulo.dev.br>
+
+If the URL is not available yet, verify that the `pages` branch exists and that
+the repository’s Gitea Actions workflow has completed. Gitea itself does not
+provide a built-in Pages server; this setup uses the instance’s separate Pages
+Server and Actions deployment path.
+
+## Research
+
+See [docs/references/README.md](docs/references/README.md) for official Claude,
+Codex, and Git documentation plus agent-workflow research.