Update README.md

Author: pushpinderchauhan

README.md

@@ -66,7 +66,7 @@ You can jump to command line prompt of PHP container using below docker command:
 ```
 docker exec -it 8294e1800058 /bin/sh
 ```
-`8294e1800058` is PHP container id as shown in the above table.
+`8294e1800058` is PHP container id as shown in the above table. Please note this container id can different on your machine.
 
 7. Since the Drush and composer are already part of PHP docker image, you can simply import the database using drush.
 
@@ -85,4 +85,9 @@ docker exec -it 8294e1800058 /bin/sh
  * ``docker ps`` See all active containers.
 
 ## References
+https://hub.docker.com/r/wodby/drupal-php/dockerfile/
+https://github.com/mzazon/php-apache-mysql-containerized
 https://itnext.io/local-drupal-8-development-with-docker-ed25910cfce2
+https://duvien.com/blog/using-docker-setup-test-environment-drupal-8-less-2-minutes
+https://github.com/Lullabot/drupal-docker-boilerplate/blob/master/README.md
+