add ghost permissions to package.json

[brad]

I was testing this out with the latest Ghost code and I found that permissions were necessary to activate it. From what I can tell, the exact format of these permissions hasn't actually been fleshed out, but at least this keeps the example working in the meantime.

[jgable]

Hey @brad, thanks for putting this together. I think it's a good fix.

Would you mind squashing your commits (the second commit message can probably just be thrown out)? If you need some guidance on that, check out our Git workflow guide.

[brad]

Yeah, no problem, I'll squash em

[brad]

Squashed!