📝 Update release notes

[skip ci]

Author: github-actions[bot]

docs/release-notes.md

@@ -8,6 +8,7 @@
 
 ### Docs
 
+* 🐛 Fix copy button in `custom.js`. PR [#1711](https://github.com/fastapi/sqlmodel/pull/1711) by [@alejsdev](https://github.com/alejsdev).
 * 📝 Remove duplicated word in `read-relationships.md`. PR [#1705](https://github.com/fastapi/sqlmodel/pull/1705) by [@stefmolin](https://github.com/stefmolin).
 
 ### Internal