feat: add section and article slugs for examples

Author: pngwn

src/transform/docs.ts

@@ -247,6 +247,8 @@ async function process_tutorial(
 			const _example = {
 				name: vfile.data.section_title,
 				slug: make_slug(`${cat_title} ${vfile.data.section_slug}`, seen_slugs),
+				section_slug: make_slug(cat_title, new Map()),
+				article_slug: vfile.data.section_slug
 			};
 
 			full.push({