fix(docx): Fix broken link in 'Need help'

Author: maxnatamo

docs/docs/support/need-help.mdx

@@ -9,7 +9,7 @@ If there's something we can help you with, please reach out on our GitHub reposi
 - Update Fetcharr to the latest version.
 - Stopping and restarting Fetcharr.
 - Glean over the logs to see if anything sticks out (see ).
-- Search the [documentation](/index), [installation guide](/getting-started/installation) and [issue tracker](https://github.com/Fetcharr/Fetcharr/issues).
+- Search the [documentation](/index.mdx), [installation guide](/getting-started/installation) and [issue tracker](https://github.com/Fetcharr/Fetcharr/issues).
 
 If you still need help, you can reach out on GitHub on either the [Issue Tracker](https://github.com/Fetcharr/Fetcharr/issues) or [Discussions](https://github.com/Fetcharr/Fetcharr/discussions). Please include relevant log messages, if needed.