Clear release notes

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

RELEASE_NOTES.md

@@ -1,6 +1,17 @@
 # Frequenz Python SDK Release Notes
 
+## Summary
+
+<!-- Here goes a general summary of what this release is about -->
+
+## Upgrading
+
+<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->
+
+## New Features
+
+<!-- Here goes the main new features and examples or instructions on how to use them -->
+
 ## Bug Fixes
 
-* Fix bug with `LoggingConfigUpdater` not updating root logger level.
-* The `frequenz-quantities` dependency requirement was widened to allow any v1.x version (it was pinned to `1.0.0rc3` before).
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->