Reset release notes (#273)

Author: llucax

RELEASE_NOTES.md

@@ -1,5 +1,17 @@
 # Frequenz Microgrid API Client 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
 
-A new component type, SteamBoiler, was added. Also added a new component category for it.
+<!-- Here goes the main new features and examples or instructions on how to use them -->
+
+## Bug Fixes
+
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->