Added phpcheck playbook

README.md

@@ -20,6 +20,18 @@ run a playbook with sudo:
 ansible-playbook playbooks/<playbook_name>.yml -K
 ```
 
+check PHP versions on hosts and in running Docker containers:
+
+```bash
+ansible-playbook playbooks/phpcheck.yml
+```
+
+with sudo (e.g. if the user is not in the docker group):
+
+```bash
+ansible-playbook playbooks/phpcheck.yml -K -e phpcheck_become=true
+```
+
 ## WSL Setup Instructions
 
 To use Ansible on Windows, you need to set up Windows Subsystem for Linux (WSL).