Update README.md

Author: damalis

README.md

@@ -193,6 +193,11 @@ to remove external certbot-etc and portainer and the other volumes
 docker volume rm $(docker volume ls -q)
 ```
 
+to remove portainer and the other images
+```
+docker rmi $(docker image ls -q)
+```
+
 ### Project from existing source
 
 Copy all files into a new directory:
@@ -227,7 +232,7 @@ You should make changes custom host configurations ```./php-fpm/php-fpm.d/z-www.
 docker container restart drupal
 ```
 
-add and/or remove drupal site folders and files with any ftp client program in ```./drupal/webapp``` folder.
+add and/or remove drupal site folders and files with any ftp client program in ```./drupal``` folder.
 <br />You can also visit `https://example.com` to access website after starting the containers.
 
 #### Webserver