tutorial: Update systemd user example docs (#460)

- Add missing directories to Butane configuration
- Adjust file permissions in Butane configuration

Fixes: #367

Signed-off-by: Erik Sjölund <[email protected]>

Signed-off-by: Erik Sjölund <[email protected]>
Co-authored-by: Erik Sjölund <[email protected]>

Author: travier

modules/ROOT/pages/tutorial-user-systemd-unit-on-boot.adoc

@@ -68,7 +68,7 @@ storage:
       hard: false
 ----
 
-And finally we setup lingering for the systemd user level instance so that it gets started directly on boot and stays running:
+We set up lingering for the systemd user level instance so that it gets started directly on boot and stays running:
 
 [source,yaml]
 ----
@@ -80,6 +80,40 @@ storage:
       mode: 0644
 ----
 
+As the following directories do not exist yet, we will have to create them to tell Ignition to set the right ownership and permissions:
+
+[source,yaml]
+----
+variant: fcos
+version: 1.4.0
+storage:
+  directories:
+    - path: /home/sleeper/.config
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+    - path: /home/sleeper/.config/systemd
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+    - path: /home/sleeper/.config/systemd/user
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+    - path: /home/sleeper/.config/systemd/user/default.target.wants
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+----
+
 == Writing the Butane config and converting to Ignition
 
 The final Butane config, stored in `user.bu`, will be:
@@ -96,8 +130,26 @@ passwd:
     - name: sleeper
 storage:
   directories:
+    - path: /home/sleeper/.config
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+    - path: /home/sleeper/.config/systemd
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
+    - path: /home/sleeper/.config/systemd/user
+      mode: 0755
+      user:
+        name: sleeper
+      group:
+        name: sleeper
     - path: /home/sleeper/.config/systemd/user/default.target.wants
-      mode: 0744
+      mode: 0755
       user:
         name: sleeper
       group:
@@ -106,7 +158,7 @@ storage:
     - path: /var/lib/systemd/linger/sleeper
       mode: 0644
     - path: /home/sleeper/.config/systemd/user/linger-example.service
-      mode: 0755
+      mode: 0644
       contents:
         inline: |
           [Unit]