Update CHANGELOG for v1.8.2 release

Author: bouwew

CHANGELOG.md

@@ -1,7 +1,10 @@
 # Changelog
 
+## v1.8.2
+
 - Add support for Emma Pro wired, rename wireless Emma to Emma Pro via PR [#804](https://github.com/plugwise/python-plugwise/pull/804)
 - Refresh adam_plus_anna_new userdata (Emma Pro included), update related test-asserts and files via PR [#799](https://github.com/plugwise/python-plugwise/pull/799)
+
 ## v1.8.1
 
 - Improve detection of orphaned/removed devices via [#802](https://github.com/plugwise/python-plugwise/pull/802)