CHANGELOG.md in ruboty-1.2.0 vs CHANGELOG.md in ruboty-1.2.1

@@ -1,4 +1,7 @@
+## 1.2.1
+- Refer Bundler from top-level
+
 ## 1.2.0
 - Add DISABLE_DEFAULT_HANDLERS env
 - Get away from help message indentation
 - Support filter query on help handler (e.g. `@ruboty help ping`)