More doc

Readme.md

@@ -8,7 +8,7 @@ This script is meant to be run by small buisness at closing time.
 ## Install
 
 0. Clone this repo `git clone https://gitlab.tetras-libre.fr/tetras-libre/simple_backup.sh`, if required, install git before `sudo apt-get install git`
-1. Install dependencies : `apt-get install zenity rsync`
+1. Install dependencies : `sudo apt-get install zenity rsync`
 2. Copy `simple_backup.env.sample` to `simple_backup.env` and set directories and destination
 3. Add fstab entry to mount destination for instance for a NFS, add the following line to `/etc/fstab` : `//<serverip>/<directory>	/media/user/backup cifs user,username=<user>,password=<password> 0 0 `, adapt every field between `<>` to your needs.
 3. Add a crontab entry with command `crontab -e` like `30 18 * * * /path/to/simple_backup.sh`