fix: adjust SUPERUSER

doc/postgres-connect-remote.md

@@ -3,6 +3,7 @@
 * configure ports and update firewall using the [firewall setup](firewall.md)
 ```
 sudo ufw allow 5432
+//OPTION: sudo ufw allow 5432
 sudo ufw enable
 sudo ufw status numbered
 ```

doc/postgres-create-user.md

@@ -7,7 +7,7 @@ CREATE USER <user name> with encrypted password 'key';
 
 * create a `SUPERUSER` user called `user name` with password `key`
 ```
-CREATE USER SUPERUSER <user name> with encrypted password 'key';
+CREATE USER <user name> with SUPERUSER encrypted password 'key';
 ```
 
 * OPTION: gant user `user name` access to database `database name`