cri_vm: fix typo

Signed-off-by: James Landrein <james@cri.epita.fr>

docs/cri_vm.md

@@ -12,7 +12,7 @@ shown numerous bugs on MacOS. VMWare is thus recommended for MacOS users.
 
 Install [Virtual Box](https://www.virtualbox.org/).
 
-On linux you can install it with your packet manager
+On linux you can install it with your package manager
 ([Debian](https://wiki.debian.org/VirtualBox) or
 [ArchLinux](https://wiki.archlinux.org/index.php/VirtualBox)).