wording on readme

[agentfitz]

Thanks for this awesome cfc. You da man!

For me, this wording is confusing:

Within your Application.cfc place the following code: application.stripeApiKey = 'YOUR STRIPE SECRET PUBLISHABLE KEY';

So should the stripeApiKey be the secret key or the publishable key? Stripe gives us both and I'm not sure which one to use here. Thanks

[agentfitz]

Ok, after attempting this, it appears to be the secret key that is needed, not the publishable key.