Merge branch 'main' into release-v1.0.1

Author: josesimoes

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## [**Changes available only in 'Preview' NuGet packages:**](https://github.com/nanoframework/System.Device.Pwm/tree/HEAD)
+## [v1.0.0-preview.20](https://github.com/nanoframework/System.Device.Pwm/tree/v1.0.0-preview.20) (2021-12-02)
 
 [Full Changelog](https://github.com/nanoframework/System.Device.Pwm/compare/v1.0.1-preview.13...HEAD)