Fix release instructions regarding CPAN distribution.

doc/HOWTO-RELEASE

@@ -7,6 +7,9 @@ How to make a new release of GNU Stow
 
   - Check CPAN distribution will work via Module::Build:
 
+      - Run ./configure && make to generate stow, chkstow, and lib/Stow.pm
+        (N.B. the CPAN distribution will contain these files, whereas
+        the GNU distribution will not.)
       - Run perl Build.PL.
       - Run ./Build test
       - Run ./Build install
@@ -54,6 +57,10 @@ How to make a new release of GNU Stow
       # Then commit
       cvs commit
 
+  - Run ./Build dist
+
+  - Upload the resulting Stow-v7.8.9.tar.gz to CPAN via https://pause.perl.org/
+
   - Upload to ftp.gnu.org.  This is easiest using gnupload:
 
       - git clone git://git.savannah.gnu.org/gnulib.git
@@ -69,5 +76,3 @@ How to make a new release of GNU Stow
 
     See http://www.gnu.org/prep/maintain/html_node/Announcements.html for
     more on making release announcements.
-
-  - Upload to CPAN via https://pause.perl.org/