corrected alias documentation

plugins/firewalld/readme.md

@@ -2,18 +2,18 @@
 
 This plugin adds some aliases and functions for FirewallD using the `firewalld-cmd` command. To use it, add firewalld to your plugins array.
 
-```
+```zsh
 plugins=(... firewalld)
 ```
 
 ## Aliases
 
-| Alias | Command                              | Description                  |
-| :---- | :----------------------------------- | :--------------------------- |
-| fw    | `firewall-cmd`                        | Shorthand                    |
-| fwr   | `firewall-cmd --reload`               | Reload current configuration |
-| fwp   | `firewall-cmd --permanent`            | Create permanent rule        |
-| fwrp  | `firewall-cmd --runtime-to-permanent` | Save current configuration   |
+| Alias | Command                                    | Description                  |
+| :---- | :----------------------------------------- | :--------------------------- |
+| fw    | `sudo firewall-cmd`                        | Shorthand                    |
+| fwr   | `sudo firewall-cmd --reload`               | Reload current configuration |
+| fwp   | `sudo firewall-cmd --permanent`            | Create permanent rule        |
+| fwrp  | `sudo firewall-cmd --runtime-to-permanent` | Save current configuration   |
 
 ## Functions