Fix instructions for bash prompt

[nniirraajj]

Remove a redundant \ causing the vcprompt command to not get executed in bash.

[jpaulin]

I think that's a useful change. Does there exist a good living branch of this base project, where you could apply this? I was just today taking vcprompt to use, find it useful tool.

[stevepeart]

This messed me up too. Wouldn't hurt to add the space at the end too so your bash line has the normal spacing before your cursor as well.