Added plotly express facet row fix to CHANGELOG

Author: jonmmease

CHANGELOG.md

@@ -29,6 +29,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Added `showEditInChartStudio` config option ([plotly/plotly.js#4061](https://github.com/plotly/plotly.js/pull/4061))
 
 ### Fixed
+ - Fixed incorrect facet row ordering in figures generated by plotly.express functions ([plotly/plotly_express#129](https://github.com/plotly/plotly_express/issues/129)) 
  - Fixed "The truth value of an array with more than one element is ambiguous" error when specifying subplot titles as numpy array of strings ([#1685](https://github.com/plotly/plotly.py/pull/1685)). Special thanks to [@MrQubo](https://github.com/MrQubo) for this contribution!
  - The `line_3d` plotly express function was not visible by default when importing `*` from `plotly.express` ([#1667](https://github.com/plotly/plotly.py/pull/1667/files))