📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* 🌐 Add Spanish translation for `advanced/path-operation-advanced-configuration.md`. PR [#1251](https://github.com/tiangolo/fastapi/pull/1251) by [@jfunez](https://github.com/jfunez).
 * ✨ Allow setting the `response_class` to `RedirectResponse` and returning the URL from the function. New and updated docs are in the tutorial section **Custom Response - HTML, Stream, File, others**, in [RedirectResponse](https://fastapi.tiangolo.com/advanced/custom-response/#redirectresponse) and in [FileResponse](https://fastapi.tiangolo.com/advanced/custom-response/#fileresponse). PR [#3457](https://github.com/tiangolo/fastapi/pull/3457) by [@tiangolo](https://github.com/tiangolo).
 * 🐛 Support custom OpenAPI / JSON Schema fields in the generated output OpenAPI. PR [#1429](https://github.com/tiangolo/fastapi/pull/1429) by [@jmagnusson](https://github.com/jmagnusson).