Update README.md

Author: znmeb

Linux/README.md

@@ -8,7 +8,7 @@ The current setup is for [Fedora Linux 25](https://fedoraproject.org/). It shoul
 
 Note that with PostgreSQL on Linux, there are two sets of users, Linux users and PostgreSQL database users, often called 'roles' in PostgreSQL jargon. For most desktop installations, things are easier if they are mapped one-to-one. That is, the PostgreSQL role `znmeb` is the same person as the Linux user `znmeb`.
 
-When PostgreSQL is installed and configured, there will be a `postgres` Linux user. And there will be a `postgres` database role (user) inside the PostgreSQL database. This database user has `superuser` powers - it can create other users and in general mess with stuff inside PostgreSQL just like `root` can on a Linux system.
+When PostgreSQL is installed and configured, there will be a `postgres` Linux user. And there will be a `postgres` database role (user) inside the PostgreSQL database. This database user has superuser privileges - it can create other users and in general mess with stuff inside PostgreSQL just like `root` can on a Linux system.
 
 1. Create `geocoder` database with owner `postgres`
       ```