docs: fix favicon customization instruction

exampleSite/content/docs/guide/configuration.md

@@ -186,10 +186,10 @@ To customize the [favicon](https://en.wikipedia.org/wiki/Favicon) for your site,
   {{< /filetree/folder >}}
 {{< /filetree/container >}}
 
-Include both `favicon.ico` and `favicon.svg` files in your project to ensure your site's favicons display correctly.
+Include `favicon.ico`, `favicon.svg` and `favicon-dark.svg` files in your project to ensure your site's favicons display correctly.
 
-While `favicon.ico` is generally for older browsers, `favicon.svg` is supported by modern ones. The optional `favicon-dark.svg` can be included for a tailored experience in dark mode.
-Feel free to use tools like [favicon.io](https://favicon.io/) or [favycon](https://github.com/ruisaraiva19/favycon) to generate these icons.
+While `favicon.ico` is generally for older browsers, `favicon.svg` and `favicon-dark.svg` are supported by modern browsers.
+Use tools like [favicon.io](https://favicon.io/) or [favycon](https://github.com/ruisaraiva19/favycon) to generate such icons.
 
 ### Theme Configuration