[docs] fix chat link (#6976)

Author: Conduitry

site/package-lock.json

@@ -30,7 +30,7 @@
     "@sindresorhus/slugify": "^0.9.1",
     "@sveltejs/adapter-node": "next",
     "@sveltejs/kit": "next",
-    "@sveltejs/site-kit": "^1.4.0",
+    "@sveltejs/site-kit": "^1.4.1",
     "@sveltejs/svelte-repl": "0.3.0",
     "degit": "^2.1.4",
     "dotenv": "^10.0.0",

site/package.json

@@ -68,11 +68,11 @@
 				<p>Please try reloading the page.</p>
 			{/if}
 
-			<p>If the error persists, please drop by <a href="chat">Discord chatroom</a> and let us know, or raise an issue on <a href="https://github.com/sveltejs/svelte">GitHub</a>. Thanks!</p>
+			<p>If the error persists, please drop by the <a rel="external" href="chat">Discord chatroom</a> and let us know, or raise an issue on <a href="https://github.com/sveltejs/svelte">GitHub</a>. Thanks!</p>
 		{/if}
 	{:else}
 		<h1>It looks like you're offline</h1>
 
 		<p>Reload the page once you've found the internet.</p>
 	{/if}
-</div>
+</div>