info on setting application key

Author: Lorenz Bausch

README.md

@@ -23,7 +23,7 @@ Web interface for [SQLgrey](http://sqlgrey.sourceforge.net/) using the [Laravel
 1. grab a copy of the code (download [master.zip](https://github.com/lbausch/SQLgreyGUI/archive/master.zip) or use `git clone https://github.com/lbausch/SQLgreyGUI.git`)
 2. make your webserver use the `public` directory as document root
 3. copy `.env.example` to `.env` and adjust it to your needs (`APP_URL`, `APP_TIMEZONE`, `APP_KEY` and database settings)
-4. run `composer update` to install all necessary dependencies
+4. run `composer update` to install all necessary dependencies and set a new application key with `php artisan key:generate`
 5. run `php artisan migrate --force` to create the database tables
 6. run `php artisan db:seed --force` to create an admin user
 7. login with the username `admin` and the password `joh316` (you can change the password in "Settings")