📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* ✏️ Fix tooltips for light/dark theme toggler in docs. PR [#9588](https://github.com/tiangolo/fastapi/pull/9588) by [@pankaj1707k](https://github.com/pankaj1707k).
 * 🌐 Add Russian translation for `docs/ru/docs/tutorial/metadata.md`. PR [#9681](https://github.com/tiangolo/fastapi/pull/9681) by [@TabarakoAkula](https://github.com/TabarakoAkula).
 * 📝 Add german blog post (Domain-driven Design mit Python und FastAPI). PR [#9261](https://github.com/tiangolo/fastapi/pull/9261) by [@msander](https://github.com/msander).
 * ✏️ Tweak wording in `docs/en/docs/tutorial/security/index.md`. PR [#9561](https://github.com/tiangolo/fastapi/pull/9561) by [@jyothish-mohan](https://github.com/jyothish-mohan).