fixup! Add note about other platforms in the README

Author: llucax

README.md

@@ -30,9 +30,8 @@ channels](https://tour.golang.org/concurrency/2) but it also borrows ideas from
 
 !!! Note inline end
 
-    Other platforms are likely to work too, but they are not
-    automatically tested, so we cannot guarantee that they will
-    work.
+    Newer Python versions and other operating systems and architectures might
+    work too, but they are not automatically tested, so we cannot guarantee it.
 
 The following platforms are officially supported (tested):