📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* ✨ Set up and enable Material for MkDocs Insiders for the docs. PR [#2325](https://github.com/tiangolo/fastapi/pull/2325) by [@tiangolo](https://github.com/tiangolo).
 * ✨ Add Discord chat. PR [#2322](https://github.com/tiangolo/fastapi/pull/2322) by [@tiangolo](https://github.com/tiangolo).
 * ✏️ Fix typo in Deta tutorial. PR [#2320](https://github.com/tiangolo/fastapi/pull/2320) by [@tiangolo](https://github.com/tiangolo).
 * 📝 Fix image links for sponsors. PR [#2304](https://github.com/tiangolo/fastapi/pull/2304) by [@tiangolo](https://github.com/tiangolo).