fix

Author: sommeeeer

pages/aws/config/custom_overrides.mdx

@@ -413,7 +413,7 @@ export default config;
 
 ## Custom External Request Proxy
 
-This is used by OpenNext to proxy rewritten requests to external services. You can read more about it [here](http://localhost:3000/aws/config/overrides/proxy_external_request). To have a custom override for the External Request Proxy you can take inspiration by looking at our [`fetch`](https://github.com/opennextjs/opennextjs-aws/blob/main/packages/open-next/src/overrides/proxyExternalRequest/fetch.ts) override. You need an `open-next.config.ts` with this:
+This is used by OpenNext to proxy rewritten requests to external services. You can read more about it [here](/aws/config/overrides/proxy_external_request). To have a custom override for the External Request Proxy you can take inspiration by looking at our [`fetch`](https://github.com/opennextjs/opennextjs-aws/blob/main/packages/open-next/src/overrides/proxyExternalRequest/fetch.ts) override. You need an `open-next.config.ts` with this:
 
 ```ts
 import type { OpenNextConfig } from '@opennextjs/aws/types/open-next.js';