📝 Sync v3 docs and content across all nine languages

New shortcode sections, landing layout docs, agent skill sections,
v2→v3 upgrade instructions, translated homepages, and sample
article feature images.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

exampleSite/content/docs/multi-author/index.de.md

@@ -1,5 +1,6 @@
 ---
 title: "Mehrere Autoren"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Konfigurieren Sie mehrere Autoren für Ihre Artikel."

exampleSite/content/docs/multi-author/index.es.md

@@ -1,5 +1,6 @@
 ---
 title: "Múltiples autores"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Configura múltiples autores para tus artículos."

exampleSite/content/docs/multi-author/index.fr.md

@@ -1,5 +1,6 @@
 ---
 title: "Auteurs multiples"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Configurez plusieurs auteurs pour vos articles."

exampleSite/content/docs/multi-author/index.it.md

@@ -1,5 +1,6 @@
 ---
 title: "Multiple Authors"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Configure multiple authors for your articles."

exampleSite/content/docs/multi-author/index.ja.md

@@ -1,5 +1,6 @@
 ---
 title: "複数の著者"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "記事に複数の著者を設定する。"

exampleSite/content/docs/multi-author/index.pt-br.md

@@ -1,5 +1,6 @@
 ---
 title: "Múltiplos autores"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Configure múltiplos autores para seus artigos."

exampleSite/content/docs/multi-author/index.pt-pt.md

@@ -1,5 +1,6 @@
 ---
 title: "Múltiplos autores"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "Configure múltiplos autores para os seus artigos."

exampleSite/content/docs/multi-author/index.zh-cn.md

@@ -1,5 +1,6 @@
 ---
 title: "多创作者模式"
+featureimage: "images/v3/multiple-authors.png"
 weight: 8
 draft: false
 description: "为你的文章设置多个作者。"