Add a step about checking out the pydotorg tree.

pep-0101.txt

@@ -302,6 +302,12 @@ How to Make A Release
   ___ While you're waiting, you can start twiddling the web pages to
       include the announcement.
 
+    ___ If necessary, and if you have the right permissions (the
+        python.org sysadmins must set this up for you), check out the
+        web site CVS tree by doing:
+
+        % cvs -d :ext:<you>@creosote.python.org:/usr/local/cvsroot co pydotorg
+
     ___ In the python.org web site CVS tree, cd to the X.Y
         subdirectory, and copy index.ht to new-index.ht.  Be sure to
         do a "cvs update" first!