Make listing match user-agent

Co-authored-by: Steven <steven@ceriously.com>

Author: oBusk

API.md

@@ -16,7 +16,7 @@ Current websites using this API:
 - [picocolors-size-benchmark](https://github.com/alexeyraspopov/picocolors/pull/76)
 - [dependencies-dashboard](https://github.com/shakib1729/dependencies-dashboard-main)
 - [https://jsgrids.statico.io](https://github.com/statico/jsgrids/commit/bb8069627d4d9a9b158ffb6324054399ef8d0433)
-- [https://npm-diff.app](https://github.com/oBusk/npm-diff.app/commit/d91f188458ac6eeae1cdc54f8a8e2be7fd81d7aa)
+- [npm-diff.app](https://github.com/oBusk/npm-diff.app/commit/d91f188458ac6eeae1cdc54f8a8e2be7fd81d7aa)
 
 ## Endpoints