Add screenshots

README.md

@@ -30,8 +30,20 @@
     ansible-playbook tools/ansible/provision.yml
     ```
 
+    If you go to the server IP address (`http://192.168.33.10`) then you should see the Apache2 default page.
+
+    ![The Apache2 Ubuntu default page](docs/images/provision-1.png)
+
+    If you go to `http://dransible` then you should see a _Forbidden_ error as the application is not yet present on the server.
+
+    ![A 'Forbidden' error when trying to load the application](docs/images/provision-2.png)
+
 1. Deploy the application:
 
     ```bash
     ansible-playbook tools/ansible/deploy.yml
     ```
+
+    After this, `http://dransible` should show an installed Drupal website.
+
+    ![The homepage of the installed Drupal website](docs/images/deploy-1.png)