Add deployment and footer duplication docs to CLAUDE.md.

CLAUDE.md

@@ -26,3 +26,26 @@ git status
 ```
 
 Then ask fox what the mission is.
+
+## www.remarkbox.com
+
+Static marketing site. HTML, CSS, and JS — no build step.
+
+## Deployment
+
+This is a static site. Pushing this repo deploys directly (no remarkbox push needed).
+
+However, the **footer** (`rb-footer`) styles and HTML are duplicated between this repo
+and the meta theme (`~/git/remarkbox-theme-meta`). When changing footer layout, update both:
+- `~/git/www.remarkbox.com/custom.css` + `index.html`
+- `~/git/remarkbox-theme-meta/remarkbox_theme_meta/static/theme/meta/css/meta.css` + `meta-base.j2`
+
+Theme changes (meta, westworld) require a `~/git/remarkbox` push to deploy.
+
+## Style
+
+- Always use "URI" instead of "URL" in user-facing text.
+
+## Commit Attribution
+
+Do NOT include `Co-Authored-By` lines or generated-with tags.