Update draft release notes for Jetpack 20.8.

Author: AliSoftware

WordPress/jetpack_metadata/release_notes.txt

@@ -1,4 +1,4 @@
-- Jetpack widgets are now available on your device’s home screen
-- Media preview controls are visible in both light and dark mode
-- Compose theme’s Login Code screen has better color contrast
-- Certain elements of the editor and post settings are now WordPress blue
+* [**] Stats: Always use Western Arabic numerals in Arabic languages (previously there was a mix of Eastern and Western Arabic numerals) [https://github.com/wordpress-mobile/WordPress-Android/pull/17160]
+* [*] [Jetpack-only] Adds more widgets, At a glance, All-time and Today widgets with dynamic previews [https://github.com/wordpress-mobile/WordPress-Android/pull/17140]
+* [**] Added author button to the post settings and the author of the post can be changed with it. [https://github.com/wordpress-mobile/WordPress-Android/pull/17120]
+