doc: describe documentation policy
* README-hacking: Describe documentation policy.
diff --git a/README-hacking b/README-hacking
index becff13..d2dfdd3 100644
--- a/README-hacking
+++ b/README-hacking
@@ -22,3 +22,10 @@
line should be blank, and the remaining lines are usually ChangeLog-style
entries for all affected files, except the leading TABs which should
be omitted.
+
+
+Documentation
+=============
+All noteworthy changes should be mentioned in NEWS. All changes in strace
+command interface should be reflected in the man page. New options should
+be documented both in -h output and in the man page.