Add docs link to changeset

Co-authored-by: Felix Schneider <[email protected]>

Author: delucis

.changeset/blue-trees-shave.md

@@ -6,7 +6,7 @@ Changes text overflow styling in Markdown content
 
 ⚠️ **Potentially breaking change:** This release switches the [`overflow-wrap`](https://developer.mozilla.org/en-US/docs/Web/CSS/overflow-wrap) CSS style for common elements to `break-word`. In most cases, there should be little visual impact, but this change can impact how layouts with implicit sizing (such as tables) look, improving legibility in how words wrap.
 
-If you want to preserve the previous styling, you can add the following custom CSS to your site:
+If you want to preserve the previous styling, you can add the following [custom CSS](https://starlight.astro.build/guides/css-and-tailwind/#custom-css-styles) to your site:
 
 ```css
 p, h1, h2, h3, h4, h5, h6, code {