Readme explains how to update host dependencies

README.md

@@ -9,10 +9,10 @@ Requires on host
 - ansible (tested 2.4.2.0)
 - ansible-galaxy
 
-### Installation
+### Host installation and updating
 
 ```
-$ ansible-galaxy install -r requirements.yml
+$ ansible-galaxy install --force -r requirements.yml
 ```
 
 Configure