Prepare release notes for rc1700 (#1170)

Author: llucax

RELEASE_NOTES.md

@@ -2,22 +2,16 @@
 
 ## 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
 
-- Add stop method to the FormulaEngine. Now it is possible to stop custom formulas.
+- Add a `stop()` method to the `FormulaEngine`. Now it is possible to stop custom formulas.
 
 - Stop fallback formulas when primary formula starts working again.
 
 ## Bug Fixes
 
-- Fixed bug with formulas raising exception when stopped.
+- Fixed a bug with formulas raising exception when stopped.
 
-- Fix a bug that raised `CancelledError` when actor was started with `frequenz.sdk.actor.run` and stopped.
+- Fixed a bug that raised `CancelledError` when actor was started with `frequenz.sdk.actor.run` and stopped.
 
-- Stop catching `BaseException` in `frequenz.sdk.actor.run`. Only `CancelledError` and `Exception` are caught now.
+- Stop catching `BaseException` in `frequenz.sdk.actor.run`. Only `CancelledError` and `Exception` are caught now.