Update README.md

Author: ironex

README.md

@@ -70,6 +70,10 @@ __B) Run already existing Magento project__
 2) Add existing project
 	- Paste your existing Magento project to magento folder  
 
+__Cleanup__
+- Stop and remove all containers, images and volumes of the project
+	- Run ``` sh bin/cleanup.sh -v```
+
 __Setup Xdebug in IDE__
 
 1) Run ```sh bin/xdebug.sh debug```