Update Readme.md

Author: danpoltawski

README.md

@@ -1,13 +1,30 @@
 # moodle-php-apache: A Moodle PHP Environment
 
-A Moodle PHP environment configured for Moodle development.
+A Moodle PHP environment configured for Moodle development based on [Official PHP Images](https://hub.docker.com/_/php/).
 
-PHP and Apache configured to serve /var/www/html/ based on [Official PHP Images](https://hub.docker.com/_/php/) with php extensions required for all Moodle database drivers and extensions.
-
-# Versions
+### Versions
 
 | PHP Version  | Tag | Status |
 |--------------|-----|--------|
 | PHP 7.1 | 7.1 | [![Build Status](https://travis-ci.org/danpoltawski/moodle-php-apache.svg?branch=php71)](https://travis-ci.org/danpoltawski/moodle-php-apache)|
 | PHP 7.0 | 7.0 | [![Build Status](https://travis-ci.org/danpoltawski/moodle-php-apache.svg?branch=php70)](https://travis-ci.org/danpoltawski/moodle-php-apache)|
 |PHP 5.6 | 5.6 | [![Build Status](https://travis-ci.org/danpoltawski/moodle-php-apache.svg?branch=php56)](https://travis-ci.org/danpoltawski/moodle-php-apache)|
+
+# Example usage
+The following command will expose the current working directory on port 8080:
+```bash
+$ docker run --name web0 -p 8080:80  -v $PWD:/var/www/html danpoltawski/moodle-php-apache:7.1
+```
+
+# Features
+
+* Preconfigured with all php extensions required for Moodle development and all database drivers
+* Serves wwroot configured at /var/www/html/
+* Verified by [automated tests](https://travis-ci.org/danpoltawski/moodle-php-apache)
+
+
+# See also
+This container is part of a set of containers for Moodle development, see also:
+* [docker-moodle](https://github.com/danpoltawski/docker-moodle) a docker-composer based set of tools to get Moodle development running with zero configuration
+* [moodle-db-mssql](https://github.com/danpoltawski/moodle-db-mssql) Microsoft SQL Server for Linux configured for Moodle development
+* [moodle-db-oracle](https://github.com/danpoltawski/moodle-db-oracle) Oracle XE configured for Moodle development