docs: cleanup README

target/example_host/vars.yaml

@@ -1,8 +1,10 @@
-user: mbess
 device_name: somehost
-profile: pro
+device_type: laptop
+# the username to install
+user: mbess
+# if it's a VM: false, if it's bare metal: false
 target_is_real: true
-organization: companyA
+# optionally configure openfortivpn
 openfortivpn_profiles:
   - name: companyA
     p:
@@ -11,9 +13,10 @@ openfortivpn_profiles:
       username: user
       password: XXX
       trusted_cert: XXXXX
+# What user config profiles to enable
 enabled_profiles:
   - name: pro
+# What kind of categories to enable
 packages_categories:
   - common
   - proprietary_vpns
-