diff --git a/README.md b/README.md
index 31524bc..491cded 100644
--- a/README.md
+++ b/README.md
@@ -72,11 +72,11 @@ now
 ```
 
 
-## Using external components with webpack
+## Using external components
 
 When using Svelte components installed from npm, such as [@sveltejs/svelte-virtual-list](https://github.com/sveltejs/svelte-virtual-list), Svelte needs the original component source (rather than any precompiled JavaScript that ships with the component). This allows the component to be rendered server-side, and also keeps your client-side app smaller.
 
-Because of that, it's essential that webpack doesn't treat the package as an *external dependency*. You can either modify the `externals` option under `server` in [webpack.config.js](webpack.config.js), or simply install the package to `devDependencies` rather than `dependencies`, which will cause it to get bundled (and therefore compiled) with your app:
+Because of that, it's essential that the bundler doesn't treat the package as an *external dependency*. You can either modify the `external` option under `server` in [rollup.config.js](rollup.config.js) or the `externals` option in [webpack.config.js](webpack.config.js), or simply install the package to `devDependencies` rather than `dependencies`, which will cause it to get bundled (and therefore compiled) with your app:
 
 ```bash
 npm install -D @sveltejs/svelte-virtual-list
diff --git a/src/routes/blog/[slug].svelte b/src/routes/blog/[slug].svelte
index 368e02e..9e0c419 100644
--- a/src/routes/blog/[slug].svelte
+++ b/src/routes/blog/[slug].svelte
@@ -1,7 +1,7 @@
 <script context="module">
 	export async function preload({ params, query }) {
 		// the `slug` parameter is available because
-		// this file is called [slug].html
+		// this file is called [slug].svelte
 		const res = await this.fetch(`blog/${params.slug}.json`);
 		const data = await res.json();
 
@@ -61,4 +61,4 @@
 
 <div class='content'>
 	{@html post.html}
-</div>
\ No newline at end of file
+</div>