Update src/content/docs/browser-rendering/quick-actions-rest-api/screenshot-endpoint.mdx

Co-authored-by: Sofia <[email protected]>

Author: daisyfaithauma

src/content/docs/browser-rendering/quick-actions-rest-api/screenshot-endpoint.mdx

@@ -46,7 +46,7 @@ curl -X POST 'https://api.cloudflare.com/client/v4/accounts/<accountId>/browser-
   --output "advanced-screenshot.webp"
 ```
 
-## Customise CSS
+## Customize CSS and embed custom JavaScript
 
 ```bash
 curl -X POST 'https://api.cloudflare.com/client/v4/accounts/<accountId>/browser-rendering/screenshot' \