Add note about stub script

README.md

 features.  What you might want to do next:
 
  *  Add SPEC file and debian dir templates (adding `make rpmstuff` and
-    `make debstuff` under your belt).
+    `make debstuff` under your belt).  You can use `utils/mkit/stub` script
+    for that.
 
  *  Add tokens inside some of your scripts to include stuff known
     only at install time (versions, paths...) so that your application