Update README.md

Author: akarnokd

README.md

@@ -26,7 +26,7 @@ Learn more about RxJava in general on the <a href="https://github.com/ReactiveX/
 
 #### Version 2.x
 
-The [2.x version](https://github.com/ReactiveX/RxJava/tree/2.x) is in maintenance mode and will be supported with only through bugfixes until **February 28, 2021**. No new features will be added to 2.x.
+The [2.x version](https://github.com/ReactiveX/RxJava/tree/2.x) is in maintenance mode and will be supported only through bugfixes until **February 28, 2021**. No new features, behavior changes or documentation adjustments will be accepted or applied to 2.x.
 
 #### Version 1.x