Update support sveltekit 286

Author: James Bray

README.md

@@ -19,7 +19,6 @@ const config = {
   preprocess: preprocess(), //Optional
 
   kit: {
-    target: '#svelte',
     adapter: serverless(),
   },
 

index.js

@@ -80,7 +80,7 @@ module.exports = function ({ out = 'build' } = {}) {
       builder.log.minor('Cleanup');
       unlinkSync(`${server_directory}/_serverless.js`);
       unlinkSync(`${edge_directory}/_router.js`);
-      unlinkSync(`${out}/app.js`);
+      unlinkSync(`${out}/index.js`);
     },
   };