docs: Wrong order of arguments in examples

[mpurg]

I believe two examples in the docs have the arguments in a wrong order:

lxc auth group permission add <group_name> project operator <project_name>

Should be

lxc auth group permission add <group_name> project <project_name> operator

Thanks,
Miha

*Reported from: https://documentation.ubuntu.com/lxd/en/latest/howto/projects_confine/

[markylaing]

Yes you are correct, thank you!