📝 Update release notes

Author: github-actions

docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest Changes
 
+* ✨ Document indexes and make them opt-in. PR [#205](https://github.com/tiangolo/sqlmodel/pull/205) by [@tiangolo](https://github.com/tiangolo).
 * ✏ Fix typo in FastAPI tutorial. PR [#192](https://github.com/tiangolo/sqlmodel/pull/192) by [@yaquelinehoyos](https://github.com/yaquelinehoyos).
 * 📝 Add links to the license file. PR [#29](https://github.com/tiangolo/sqlmodel/pull/29) by [@sobolevn](https://github.com/sobolevn).
 * ✏ Fix typos in docs titles. PR [#28](https://github.com/tiangolo/sqlmodel/pull/28) by [@Batalex](https://github.com/Batalex).