Add Open Graph meta tags and iOS app banner.

2024/index.html

@@ -6,7 +6,19 @@
   <link rel="icon" type="image/png" sizes="32x32" href="/2024/favicon-32x32.png">
   <link rel="icon" type="image/png" sizes="16x16" href="/2024/favicon-16x16.png">
   <link rel="manifest" href="/2024/site.webmanifest">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <meta name="description" content="Let'Swift Conference 2024.">
+  <meta name="keywords" content="Let'Swift, Swift Conference, Swift 2024, iOS development">
+  <meta property="og:locale" content="ko_KR"/>
+  <meta property="og:type" content="website"/>
+  <meta property="og:site_name" content="Let'Swift"/>
+  <meta property="og:title" content="Let'Swift 2024"/>
+  <meta property="og:description" content="Let'Swift Conference 2024"/>
+  <meta property="og:url" content="https://letswift.kr/2024/"/>
+  <meta property="og:image" content="https://letswift.kr/2024/og.image.png"/>
+  <meta property="og:image:width" content="1200"/>
+  <meta property="og:image:height" content="630"/>
+  <!-- iOS -->
+  <meta name="apple-itunes-app" content="app-id=1282995254">
   <title>Let'Swift 2024</title>
   <script type="module" crossorigin src="/2024/assets/index-CPJw1vaa.js"></script>
   <link rel="stylesheet" crossorigin href="/2024/assets/index-BoaXv1Xk.css">