feat: add example

scripts/lib/slugify-heading.mjs

@@ -0,0 +1,14 @@
+const reservedLayerSlugs = new Set(['app', 'compositions', 'domains', 'infra', 'ui', 'shared']);
+
+export const slugifyHeading = (value) => {
+  const slug = value
+    .replace(/<[^>]+>/g, '')
+    .replace(/`/g, '')
+    .trim()
+    .toLowerCase()
+    .replace(/\s+/g, '-')
+    .replace(/[^\p{L}\p{N}_-]/gu, '')
+    .replace(/-+/g, '-');
+
+  return reservedLayerSlugs.has(slug) ? `layer-${slug}` : slug;
+};