Update CHANGELOG.md

Author: brefra

CHANGELOG.md

@@ -1,10 +1,11 @@
 # Changelog
 
-## 0.12.0 - Stick: Bugfixes and 'Energy Today' counter
+## 0.12.0 - Energy support and bugfixes
 
-- Stick: Add new Energy Today counter to be used in new Energy dashboard introduced in Home Assistant 2021.8
+- Stick: Add new properties `energy_consumption_today` counter and `energy_consumption_today_last_reset` timestamp. These properties can be used to properly measure the used energy. Very useful for the 'Energy' capabilities introduced in Home Assistant 2021.8
 - Stick: Synchronize clock of all plugwise devices once a day
-- Stick: Reduce local clock drift from 30 to 5 seconds
+- Stick: Reduced local clock drift from 30 to 5 seconds
+- Stick: Optimized retrieval and handling of energy history
 
 ## 0.11.2 - Fix new and remaining pylint warnings