Update DB docs

See https://github.com/pgxn/pgxn-manager/wiki/DB-API

bin/gendoc

@@ -1,5 +1,9 @@
 #!/usr/bin/env perl -w
 
+# cpanm --notest Text::MultiMarkdown
+# plenv rehash
+# /bin/gendoc --title 'PGXN Manager Database API' --toc sql/*.sql | MultiMarkdown.pl pbcopy
+
 use 5.10.0;
 use Getopt::Long;
 our $VERSION = '0.02';

sql/16-user-funcs.sql

@@ -2,7 +2,8 @@ BEGIN;
 
 -- Utilityt function to create the password salt, so it can be quickly swapped
 -- for new algorithms in the future.
-CREATE OR REPLACE FUNCTION _salt() RETURNS TEXT LANGUAGE SQL AS $$
+CREATE OR REPLACE FUNCTION _salt(
+) RETURNS TEXT LANGUAGE SQL AS $$
     SELECT gen_salt('bf', 9);
 $$;