Documentation updates.

Author: liamfiddler

README.md

@@ -15,6 +15,9 @@ Processes are managed by Supervisor.
 
 A cron job has been set up which will call the Laravel scheduler once per minute.
 
+Before using Redis with Laravel, you will need to install the `predis/predis`
+package via Composer. Refer to the [Laravel Redis documentation](https://laravel.com/docs/master/redis).
+
 
 ### Adding your website files
 
@@ -23,6 +26,13 @@ Dockerfile, or if you are not extending this container you can mount
 your local directory to `/share` as a volume.
 
 
+### Executing Artisan commands when the container is run
+
+Any [Supervisor program:x config files](http://supervisord.org/configuration.html#program-x-section-values)
+you ADD/COPY to the `/etc/supervisord/` directory will be automatically run when
+the container starts. Make sure the filename ends with `.conf`.
+
+
 ### Usage for non-Laravel or Lumen projects
 
 If you want to use this container for a generic PHP project you can mount