Prepare changelog for 0.9.0 release

Author: nanomad

CHANGELOG.md

@@ -1,5 +1,24 @@
 # Change Log
 
+## 0.9.0 
+
+### What's Changed
+* Compatibiltity with the latest mobile app release
+* #292: Push HA discovery again when HA connects to broker by @krombel in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/294
+* add random delay before pushing discovery by @krombel in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/295
+* #296: Detect charging from BMS instead of car state by @nanomad in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/298
+* Mark 'Last Charge SoC kWh' in HA as a TOTAL_INCRESING sensor so that it can be used in Energy Dashboard by @nanomad
+* Expose journey ID to Home Assistant by @nanomad
+* Internally mark the car as "shutdown" only after the car state changes.
+This avoids looking for a "charging started" event as soon as the charging is completed by @nanomad
+* Keep retrying initial login by @nanomad in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/319
+* Publish window status only if mileage is reported properly by @nanomad in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/320
+
+### New Contributors
+* @krombel made their first contribution in https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/pull/294
+
+**Full Changelog**: https://github.com/SAIC-iSmart-API/saic-python-mqtt-gateway/compare/0.7.1...0.9.0
+
 ## 0.7.1
 
 ## What's changed