Update configuration.mdx

Author: ajay-dhangar

docs/configuration.mdx

@@ -215,9 +215,3 @@ Restart the dev server for changes to take effect.
 * Keep **SEO** fields (title, description, keywords) updated for better visibility.
 * Use environment variables (`process.env`) for secrets like analytics keys.
 * Store commonly reused links (GitHub, Discord) in `customFields` to update them in one place.
-
----
-
-🎯 With a well-structured `docusaurus.config.js`,
-you can manage **site-wide settings, themes, and plugins** easily,
-making CodeHarborHub scalable and contributor-friendly.