Update README.md

Author: pushpinderchauhan

README.md

@@ -1,6 +1,6 @@
 # Dockerize an Existing Drupal Project
 Drupal 8 is not new now and most developers have started using Docker for local development. However, few developers still struggle to setup Docker locally. 
-There are tons of documents available on the Internet which describe how to set up a local Docker + Drupal development environment. 
+There are tons of documents available on the Internet which describe how to set up a local Docker + Drupal development environment. They are really helpful but most of them come with their own custom images.
 Considering folks who are new to Docker find this documentation complicated sometimes because to run Docker locally requires a lot of configurations.
 On top of that, there are multiple docker images available on Web, and developers who want to use docker in existing projects can't finalize
 what is the right Docker image for their project. 
@@ -64,3 +64,4 @@ docker exec -it 8294e1800058 /bin/sh
 8. This way the basic setup is done and you can change the composer file accordingly. In case any additional PHP library is needed, update the PHP docker file and rebuild the PHP Docker image.
 
 ## Detailed Explanation
+--WIP---