add description meta tag

index.html

···
     <meta property="og:type" content="website" />
     <meta property="og:url" content="https://pdsls.dev" />
     <meta property="og:description" content="Browse and manage atproto repositories" />
+    <meta property="description" content="Browse and manage atproto repositories" />
     <title>PDSls</title>
     <script>
       if (