docs: added changelog entry

vlastahajek · vlastahajek · commit e52048f87f1a · 2022-10-25T14:17:24.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,6 @@
 ## [unreleased]
+### Bug fixes
+- [#359](https://github.com/influxdata/influxdb-client-go/pull/359) `WriteAPIBlocking.Flush()` correctly returns nil error. 
 
 ## 2.11.0 [2022-09-29]
 ### Features
