migrate tutorial

repl/vite.config.js

@@ -1,7 +1,23 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
+import { defineConfig } from 'vite';
+import react from '@vitejs/plugin-react';
+import { fileURLToPath } from 'url'
+
+import mdx from 'vite-plugin-mdx';
+
+// `options` are passed to `@mdx-js/mdx`
+const options = {
+  // See https://mdxjs.com/advanced/plugins
+  remarkPlugins: [
+    // E.g. `remark-frontmatter`
+  ],
+  rehypePlugins: [],
+};
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [react()]
-})
+  input: {
+    repl: fileURLToPath(new URL('./index.html', import.meta.url)),
+    tutorial: fileURLToPath(new URL('./tutorial/index.html', import.meta.url)),
+  },
+  plugins: [react(), mdx(options)],
+});