Tell people where to get help with CVS.

MAINTENANCE

@@ -93,7 +93,20 @@ IV) Checking into CVS directory tree
 ====================================
 
 Step 0)
-  Become familiar with CVS.
+  Become familiar with CVS. There is a very fine Info manual available. You
+  can view it with "info cvs", or -- better -- use Emacs as Info-reader.
+
+  Another very good source of information is
+
+  http://www.cvshome.org/
+
+  with the online-manual and online-FAQ at
+
+  http://www.cvshome.org/docs/manual/
+  http://ccvs.cvshome.org/fom//cache/1.html
+
+  (the latter link seems to be a bit funky, may better use the CVS home page
+  as entry point.)
 
 Step 0a)
   Make sure the stuff you are checkingin at least builds without errors.