Update README.md

Merge pull request #12 from abyshakes/mysql-port

#11 Changed the key 'expose' to 'ports' linking mariadb

Update to use drupal:8 container

Add Drush documentation

Merge pull request #2 from RobLoach/noscript

Remove the initialization script

Update docker-compose.yml

Update README.md

Update to docker-compose

Update README.md

Update README.md

Remove use of drush site-install

Use conditional logic for the settings files

Update documentation