Update release notes

Signed-off-by: Daniel Zullo <[email protected]>

Author: daniel-zullo-frequenz

RELEASE_NOTES.md

@@ -30,14 +30,12 @@
   - Add `count_covered` method to count the number of elements covered by the used time range.
   - Add `fill_value` option to window method to impute missing values. By default missing values are imputed with `NaN`.
 - Add `at` method to `MovingWindow` to access a single element and use it in `__getitem__` magic to fully support single element access.
-
-
+- The `ConnectionManager` fetches microgrid metadata when connecting to the microgrid and exposes `microgrid_id` and `location` properties of the connected microgrid.
 
 - The PowerDistributingActor now supports n:m relations between inverters and
   batteries.
   This means that one or more inverters can be connected to one or more batteries.
 
-
 ## Bug Fixes
 
 - Fix rendering of diagrams in the documentation.