feat: add promo page

README.md

@@ -3,6 +3,8 @@
 Universal S3 UI is a lightweight, cross-platform graphical user interface for managing S3-compatible object storage services, with a particular focus on non-AWS implementations. 
 Built with Go and Fyne, this application provides a seamless experience across macOS, Windows, and Linux and is provided as a native app.
 
+[https://us3ui.pteich.de](https://us3ui.pteich.de)
+
 ## Features
 
 - **Universal Compatibility**: Works with any S3-compatible storage service (Minio, Ceph, etc.)

index.html

@@ -10,14 +10,12 @@
     <link rel="icon" type="image/png" href="Icon.png">
     <link rel="apple-touch-icon" href="Icon.png">
 
-    <!-- Social Media Meta Tags -->
     <meta property="og:title" content="us3ui - Universal S3 File Manager">
     <meta property="og:description" content="A native cross-platform GUI application for managing any S3-compatible storage service">
-    <meta property="og:image" content="https://raw.githubusercontent.com/pteich/us3ui/main/screenshots/filelist.png">
+    <meta property="og:image" content="https://raw.githubusercontent.com/pteich/us3ui/main/Icon.png">
     <meta property="og:url" content="https://github.com/pteich/us3ui">
     <meta property="og:type" content="website">
 
-    <!-- Twitter Card -->
     <meta name="twitter:card" content="summary_large_image">
     <meta name="twitter:title" content="us3ui - Universal S3 File Manager">
     <meta name="twitter:description" content="A native cross-platform GUI application for managing any S3-compatible storage service">