Add OpenGraph meta tags for social sharing & favicon

Author: k-arindam

index.html

@@ -7,6 +7,10 @@
     <title>Render Protocol - Mobile SDUI Framework</title>
     <meta name="description"
         content="An open-source, server-driven UI framework for SwiftUI, Flutter, and Jetpack Compose. Dynamic, schema-driven UIs powered by Protobuf and AI.">
+    <meta property="og:image" content="https://renderprotocol.github.io/renderprotocol.jpg">
+    <meta name="twitter:card" content="summary_large_image">
+    <meta name="twitter:image" content="https://renderprotocol.github.io/renderprotocol.jpg">
+    <link rel="icon" href="renderprotocol.jpg" type="image/jpeg">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
     <link