Reset release notes (#161)

Author: cwasicki

RELEASE_NOTES.md

@@ -1,10 +1,17 @@
 # Frequenz Electricity Trading 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
 
-- Added HMAC capabilities
-- Add option to request public order data from the API.
+<!-- 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 -->