add sudo command for LXC

Author: Patrick M

_posts/2022-12-18-lxc-set-up.md

@@ -17,7 +17,7 @@ apt update && apt upgrade -y
 ```
 
 ```bash
-apt install curl nano openssl rsync -y
+apt install curl nano openssl rsync sudo -y
 ```
 
 ## Don't use root