docs: update example posts

src/content/posts/Universal Article.md

@@ -1,6 +1,7 @@
 ---
 title: Universal Article
 published: 2025-03-24
+draft: true
 # lang: ''
 description: This is a universal multilingual article with unspecified 'lang', displayed by default across all language-specific paths. Este es un artículo universal multilingüe sin definir 'lang', visible por defecto en todas las rutas de idiomas.
 ---

src/content/posts/guides/Markdown Extended Features-en.md

@@ -42,7 +42,7 @@ To create a Github repository card, use the double colon syntax `::github{repo="
 
 ::github{repo="radishzzz/astro-theme-retypeset"}
 
-## Admonition Blocks
+## Admonition
 
 To create admonition blocks, use the GitHub syntax `> [!TYPE]` or the triple colon syntax `:::type`. Following types are supported: `note`, `tip`, `important`, `warning`, and `caution`.
 

src/content/posts/guides/Markdown Extended Features-es.md

@@ -42,7 +42,7 @@ Para crear una tarjeta de repositorio de Github, utilice la sintaxis de doble do
 
 ::github{repo="radishzzz/astro-theme-retypeset"}
 
-## Bloques de Advertencia
+## Advertencia
 
 Para crear bloques de advertencia, utilice la sintaxis de GitHub `> [!TYPE]` o la sintaxis de triple dos puntos `:::type`. Se admiten cinco tipos: `note`, `tip`, `important`, `warning` y `caution`.
 

src/content/posts/guides/Markdown Extended Features-ru.md

@@ -42,7 +42,7 @@ abbrlink: markdown-extended-features
 
 ::github{repo="radishzzz/astro-theme-retypeset"}
 
-## Блоки примечаний
+## Примечания
 
 Для создания блоков примечаний используйте синтаксис GitHub `> [!TYPE]` или синтаксис с тройным двоеточием `:::type`. Поддерживаются пять типов: `note`, `tip`, `important`, `warning` и `caution`.