Add comment to nocem.conf to comma separate types for same issuer.

Rocksolid_Light/rslight/nocem.conf

@@ -1,6 +1,11 @@
 # You must add the public key for
 # each issuer listed to the directory
 # set in gpg.conf
+#
+# For multiple types for one issuer
+# list types comma separated on one line
+# ex: nocem-issuer@example.com:spam,flood,etc
+#
 # Set GNUPGHOME to this directory
 # when adding the key using gpg