Rename documentation to guide in storybook homepage

Author: garronej

stories/intro.stories.mdx

@@ -19,5 +19,5 @@ import { useDarkMode } from "storybook-dark-mode";
     🇫🇷 <i><a href="https://www.systeme-de-design.gouv.fr/">French State Design System</a> React integration</i> 🇫🇷 
 
 This website documents the React components featured by [@codegouvfr/react-dsfr](https://github.com/codegouvfr/react-dsfr).  
-🏁 If you're just getting started heads over to the 👉[documentation website](https://react-dsfr.etalab.studio/)👈.
+🏁 If you're just getting started heads over to the 👉[guides](https://react-dsfr.etalab.studio/)👈.
 </div>