chore(demo): add meta description [ci skip]

metonym · metonym · commit 655283d32a9e · 2022-06-20T08:40:44.000-07:00
diff --git a/demo/app.html b/demo/app.html
@@ -3,6 +3,10 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta
+      name="description"
+      content="Syntax Highlighting for Svelte using highlight.js"
+    />
     %sveltekit.head%
   </head>
   <body>
