Improvements to the LEMP Stack

While doing some testing for the LEMP stack I've ran in to a few issues / bugs and have some improvements in mind:

• Need to add restart:always to each of the services in the docker-compose.yml file.
• The nginx.conf creates a conflict between that file and the default.conf file - set to rename nginx.conf to default.conf
• Need to give the opportunity to change the host port of the nginx container via .env
• Add the web folder to the .gitignore exception list.
• Add extra files in the php container by default.
  • test.php - phpinfo()
  • adminer single page database viewer.
  • index.php - standard hello world