📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,6 +2,7 @@
 
 ## Latest changes
 
+* Add example about [Testing a Database](https://fastapi.tiangolo.com/advanced/testing-database/). Initial PR [#1144](https://github.com/tiangolo/fastapi/pull/1144) by [@duganchen](https://github.com/duganchen).
 * Update docs for [Development - Contributing: Translations](https://fastapi.tiangolo.com/contributing/#translations) including note about reviewing translation PRs. [#1215](https://github.com/tiangolo/fastapi/pull/1215).
 * Update log style in README.md for GitHub Markdown compatibility. PR [#1200](https://github.com/tiangolo/fastapi/pull/1200) by [#geekgao](https://github.com/geekgao).
 * Add Python venv `env` to `.gitignore`. PR [#1212](https://github.com/tiangolo/fastapi/pull/1212) by [@cassiobotaro](https://github.com/cassiobotaro).