Clear release notes (#158)

Signed-off-by: ela-kotulska-frequenz <[email protected]>

Author: ela-kotulska-frequenz

RELEASE_NOTES.md

@@ -2,32 +2,16 @@
 
 ## Summary
 
-The Frequenz SDK now supports Python 3.11.
+<!-- Here goes a general summary of what this release is about -->
 
 ## Upgrading
 
-## New Features
-
-- Upgrade PowerDistributingActor to track if batteries are working
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/117
-
-- Simplify `Resampler` by moving configuration to its own class `ResamplerConfig`
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/131
+<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with --> 
 
-- Add `initial_buffer_len` to the ResamplerConfig. This means that `Resampler` will store at least this number of arguments. Other `Resampler` behaviour won't change
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/131
-
-- Ability to compose formula outputs into higher-order formulas:
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/133
+## New Features
 
-- Add a formula generator for SoC in the LogicalMeter
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/137
+<!-- Here goes the main new features and examples or instructions on how to use them -->
 
 ## Bug Fixes
 
-- Formulas with repeated operators like `#1 - #2 - #3` were getting
-  calculated incorrectly as `#1 - (#2 - #3)`.  This has been fixed in
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/141
-
-- Remove `microgrid_api` and `component_graph` arguments from PowerDistributingActor constructor
-  https://github.com/frequenz-floss/frequenz-sdk-python/pull/156
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->