feat: add author Azhar Uddin and publish date 2026-06-28 to meta tags and structured data

Author: azhar25git

index.html

@@ -10,7 +10,8 @@
 
     <!-- Search engine metadata -->
     <meta name="robots" content="index, follow, max-image-preview:large">
-    <meta name="author" content="azhar25git">
+    <meta name="author" content="Azhar Uddin">
+    <meta name="date" content="2026-06-28">
     <meta name="keywords" content="PHP 8, PHP 8.x, PHP tutorial, modern PHP, PHP guide, PHP programming, PHP-FPM, Composer, PHPUnit, PDO, web development">
     <meta name="theme-color" content="#4c1d95" media="(prefers-color-scheme: light)">
     <meta name="theme-color" content="#1b1f24" media="(prefers-color-scheme: dark)">
@@ -38,10 +39,21 @@
     <script type="application/ld+json">
     {
         "@context": "https://schema.org",
-        "@type": "WebSite",
-        "name": "Modern PHP 8.x Masterclass",
+        "@type": "TechArticle",
+        "headline": "Modern PHP 8.x Masterclass — Complete Guide",
         "url": "https://azhar25git.github.io/php8-tutorial/",
-        "description": "A comprehensive, modern guide to PHP 8.x programming from core fundamentals to enterprise engineering and production deployment."
+        "description": "A comprehensive, modern guide to PHP 8.x programming from core fundamentals to enterprise engineering and production deployment.",
+        "author": {
+            "@type": "Person",
+            "name": "Azhar Uddin",
+            "url": "https://github.com/azhar25git"
+        },
+        "datePublished": "2026-06-28",
+        "publisher": {
+            "@type": "Person",
+            "name": "Azhar Uddin",
+            "url": "https://github.com/azhar25git"
+        }
     }
     </script>
     <script>