add a reminder to merge the codebase with with the savannah upstream

debian/watch

-version=4
+# The current repo is not yet synced to savannah and should be done in a future
+# commit.
 
+version=4
 opts="mode=git, dversionmangle=auto, pretty=3.20+git%cd.%h" \
     git://git.savannah.gnu.org/emacs/elpa.git \
     heads/externals/muse debian uupdate