added html docs for embedded content

tutorials/html/12-html-head/head.mdx

@@ -1,15 +1,20 @@
 ---
 id: head-element
-title: "Document Metadata Container: The head Element"
-sidebar_label: "Head Container (<head>)"
+title: "The HTML Head Element"
+sidebar_label: "Head"
 sidebar_position: 3
 slug: /html/html-head/head
-description: "Understand the structural role of the head tag in holding machine-readable information, metadata, stylesheets, and scripts before body rendering."
+description: "Learn what belongs inside the HTML head element, what does not, and what the browser does when you break the rules. Includes a live parser lab that shows where the browser really puts each element, and a simulation of how script loading affects your page."
 keywords:
-  - HTML head tag
-  - document head element
-  - metadata container HTML
-  - web page head section
+  - HTML head element
+  - head tag
+  - what goes in the head
+  - head vs body
+  - HTML document metadata
+  - defer async script
+  - head element order
+  - HTML parser head closes early
+  - learn HTML
   - CodeHarborHub HTML
-tags: [html, head, metadata, elements]
+tags: [html, web-development, beginner, head, metadata, parsing, performance, frontend]
 ---

tutorials/html/12-html-head/html.mdx

@@ -1,15 +1,21 @@
 ---
 id: html-element
-title: "The Root Container: The html Element and lang Attribute"
-sidebar_label: "Root Element (<html>)"
+title: "The HTML Element, Doctype and lang"
+sidebar_label: "HTML"
 sidebar_position: 2
 slug: /html/html-head/html
-description: "Learn how the html tag acts as the top-level root element and why setting explicit lang attributes is vital for accessibility and localized search."
+description: "Learn the root of every web page: the doctype, the html element, the lang and dir attributes, how the document is split into head and body, and what happens when you leave them out. Includes a live document-skeleton builder and a quirks-mode check."
 keywords:
-  - HTML html tag
-  - root html element
-  - html lang attribute
-  - document root language
+  - HTML element
+  - html root element
+  - DOCTYPE html
+  - lang attribute
+  - dir attribute rtl
+  - HTML document structure
+  - quirks mode standards mode
+  - head and body
+  - HTML skeleton
+  - learn HTML
   - CodeHarborHub HTML
-tags: [html, head, root, accessibility]
+tags: [html, web-development, beginner, html-element, doctype, lang, accessibility, frontend]
 ---