Fix a typo.

INSTALL

@@ -23,19 +23,23 @@ These are one-time things to do, in that you can recreate and reload
 the catalog database any number of times without having to do these
 steps again.
 
-Create a user to own the tables and a role to use the tables.  (The
-connection limits are merely suggestions.)
+Create roles to own and manage the tables.  (The connection limits are
+merely suggestions.)
 
-   # su - postgres
+   ## The table owner, must be 'pgc_owner'
    $ createuser --connection-limit=1 --createdb --echo pgc_owner
+   ## The table user role, must be 'pgc_user'
    $ createuser --connection-limit=5 --no-login pgc_user
+   ## A user who will connect as pgc_owner, named as you like,
+   ## e.g. your own username.
+   $ createuser --connection-limit=1 irulan
 
-Configure postgres to allow connection to the catalog database by your
-postgres username, e.g. "irulan".  This is for the case that the
-postgres server runs on the same host.  Consult postgres's excellent
-documentation for other cases.
+Configure postgres to allow "irulan" to connect to the catalog
+database as pgc_owner, so that irulan can manage the database.  This
+is for the case that the postgres server runs on the same host.
+Consult postgres's excellent documentation for other cases.
 
-In pg_ident.conf, add two map lines so that the end of the file resembles this:
+In pg_ident.conf, add map lines so that the end of the file resembles this:
 
    # MAPNAME       SYSTEM-USERNAME         PG-USERNAME
    irulanmap       irulan                  irulan
@@ -48,20 +52,15 @@ In pg_hba.conf, modify the second "local" line, the one following the
 
 Tell postgres about these edits.
 
-   # systemctl reload postgres
+   # systemctl reload postgresql
    
 At this point "irulan" has privilege to create and drop the catalog
 database.  Routine use of the database is more safely done by a
-username with lesser privilege, i.e. only the "pgc_user" role.  E.g.
-as postgres, run
-
-   $ psql
-   postgres=# grant pgc_user to fenring;
-   postgres=# \q
+username with lesser privilege, i.e. only pgc_user.  See pgc-www's
+INSTALL for an example (<https://tildegit.org/barnold/pgc-www>).
 
 2. As the operating system user "irulan", you should now be able to
-use any of the targets in Makefile.orig to create and load the catalog
-database.
+create and load the catalog database.
 
    $ make PGC_DANGEROUS=1 rebuild-db
    $ make load-catalog
@@ -75,7 +74,8 @@ with e.g.
 
    sudo make install-modules
 
-which installs under /usr/local/lib/site_perl.  Alternatively do e.g.
+which installs them under /usr/local/lib/site_perl.  Alternatively do
+e.g.
 
    make PGC_PERL5LIB=~/.local/lib/perl5 install-modules
 
@@ -83,4 +83,3 @@ though you'll probably need to set PER5LIB in this case before using
 the modules in your perl code.
 
 Comments and questions welcome at <barnold@tilde.club>.
-