Clear RELEASE_NOTES.md (#36)

Author: shsms

RELEASE_NOTES.md

@@ -2,9 +2,16 @@
 
 ## Summary
 
-This release updates the minimum required `frequenz-channels` version is updated
-to v1.0.0-rc1.  This is a breaking change, because the channels API has changed.
+<!-- Here goes a general summary of what this release is about -->
 
 ## Upgrading
 
-Follow the upgrading instructions from the new channel release: [v1.0.0-rc1](https://github.com/frequenz-floss/frequenz-channels-python/releases/tag/v1.0.0-rc.1).
+<!-- 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
+
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->