Update changelo

Author: Chahan Kropf

CHANGELOG.md

@@ -26,7 +26,8 @@ Removed:
 - Refactored `Exposure.assign_centroids` using a new util function `u_coord.match_centroids` [#602](https://github.com/CLIMADA-project/climada_python/pull/602)
 - Renamed `climada.util.coordinate.assign_grid_points` to `match_grid_points` and `climada.util.coordinates.assign_coordinates` to `match_coordinates`
 [#602](https://github.com/CLIMADA-project/climada_python/pull/602)
-- Modified the method to disaggregate lines in the lines_polygons_handler utility module in order to better conserve the total length of all lines on average [#679](https://github.com/CLIMADA-project/climada_python/pull/679).
+- Modified the method to disaggregate lines in the `lines_polys_handler` utility module in order to better conserve the total length of all lines on average [#679](https://github.com/CLIMADA-project/climada_python/pull/679).
+- Added test for non-default impact function id in the `lines_polys_handler` [#676](https://github.com/CLIMADA-project/climada_python/pull/676)
 
 ### Fixed