Update README.md

[SmartManoj]

[ddxv]

@SmartManoj I think the $ sign is useful here to signify the commands are not run as root FYI, but I understand they get in the way of copy paste. I'm not a maintainer or even user here though, was just looking through the project.

[niklashigi]

@SmartManoj That's a valid suggestion, thanks for the contribution!