Document addition of chroot.
diff --git a/Misc/NEWS b/Misc/NEWS
index 726cc05..0e312c1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -26,6 +26,8 @@
 
 - readline now supports setting the startup_hook and the pre_event_hook.
 
+- posix supports chroot where available.
+
 Library
 
 - doctest now excludes functions and classes not defined by the module