docs: improve guides

Author: bennypowers

docs/guides/first-pages/manage-sidebar.md

@@ -1,4 +1,4 @@
-# First Pages >> Managing sidebar ||30
+# First Pages >> Managing sidebar || 30
 
 The sidebar will show all the content of the current section.
 
@@ -33,10 +33,11 @@ eleventyNavigation:
 ---
 ```
 
+<!--
 You can also look at this live playground:
 
 ```js story
-import { html } from 'lit-html';
+import { html } from '@mdjs/mdjs-preview';
 
 export const headlineConverter = () => html`
   <p>
@@ -45,6 +46,7 @@ export const headlineConverter = () => html`
   </p>
 `;
 ```
+-->
 
 How it then works is very similar to https://www.11ty.dev/docs/plugins/navigation/
 

docs/guides/first-pages/use-javascript.md

@@ -1,25 +1,46 @@
-# First Pages >> Use JavaScript ||40
+# First Pages >> Use JavaScript || 40
 
-You can use `js script` to execute JavaScript (`type="module"`).
+If you would like to add JavaScript to a page, you can do it inline using the `script` markdown directive. The script you write runs on the page as a module.
 
-````
+<!-- prettier-ignore-start -->
+~~~markdown
 ```js script
-console.log('foo');
+const message = 'Hello, World!';
+console.log(message);
 ```
-````
+~~~
+<!-- prettier-ignore-end -->
 
-This can be useful for importing web components and using them in Markdown.
+Adding the above will log `Hello, World!` to the console without adding a global `message` variable.
 
-````
+This can be useful for importing web components and using them in Markdown. Imagine you had some `magic-reveal` element that you wanted to use on a page:
+
+<!-- prettier-ignore-start -->
+~~~markdown
 ```js script
 import 'magic-reveal/magic-reveal.js';
+```
 
 <magic-reveal>
 
 This text will get magically revealed. I can **still** use Markdown as long as there is an empty line between the opening/closing tags and my text.
 
 </magic-reveal>
-```
-````
+~~~
+<!-- prettier-ignore-end -->
+
+## Component Story Format
 
-or you can use `js story`, `js preview-story`, ...
+You can also add storybook-style CSF (v2 only) stories to a page using `js story` or `js preview-story`, just make sure to import `html` from `@mdjs/mdjs-preview` instead of from `lit` or `lit-html`.
+
+<!-- prettier-ignore-start -->
+~~~markdown
+```js story
+import { html } from '@mdjs/mdjs-preview';
+
+export const StoryPreview = () => html`
+  <p>Use stories in Rocket!</p>
+`;
+```
+~~~
+<!-- prettier-ignore-end -->