Feat: Improve Docs (#1791)

* improve docs

* preplan guides

* fix spelling

* fix nftables rules

* consistent wg-easy code block

* fix grammar

docs/content/examples/tutorials/auto-updates.md

@@ -6,11 +6,49 @@ title: Auto Updates
 
 With Docker Compose `wg-easy` can be updated with a single command:
 
-Replace `$DIR` with the directory where your `docker-compose.yml` is located.
+```shell
+cd /etc/docker/containers/wg-easy
+sudo docker compose up -d --pull always
+```
+
+### Watchtower
+
+If you want the updates to be fully automatic you can install Watchtower. This will check for updates every day at 4:00 AM and update the container if a new version is available.
+
+File: `/etc/docker/containers/watchtower/docker-compose.yml`
+
+```yaml
+services:
+  watchtower:
+    image: containrrr/watchtower:latest
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    env_file:
+      - watchtower.env
+    restart: unless-stopped
+```
+
+File: `/etc/docker/containers/watchtower/watchtower.env`
+
+```env
+WATCHTOWER_CLEANUP=true
+WATCHTOWER_SCHEDULE=0 0 4 * * *
+TZ=Europe/Berlin
+
+# Email
+# WATCHTOWER_NOTIFICATIONS_LEVEL=info
+# WATCHTOWER_NOTIFICATIONS=email
+# WATCHTOWER_NOTIFICATION_EMAIL_FROM=mail@example.com
+# WATCHTOWER_NOTIFICATION_EMAIL_TO=mail@example.com
+# WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.example.com
+# WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER=mail@example.com
+# WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD="SuperSecurePassword"
+# WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
+```
 
 ```shell
-cd $DIR
-sudo docker compose up -d --pull always
+cd /etc/docker/containers/watchtower
+sudo docker compose up -d
 ```
 
 ## Docker Run