docs: updated CHANGELOG.md

Author: bednar

CHANGELOG.md

@@ -7,6 +7,7 @@
 1. [#222](https://github.com/influxdata/influxdb-client-python/pull/222): Pass configured timeout to HTTP client
 1. [#218](https://github.com/influxdata/influxdb-client-python/pull/218): Support for `with .. as ..` statement
 1. [#232](https://github.com/influxdata/influxdb-client-python/pull/232): Specify package requirements in `setup.py`
+1. [#235](https://github.com/influxdata/influxdb-client-python/pull/235): Write a dictionary-style object without tags
 
 ## 1.16.0 [2021-04-01]