Add "Come learn the basics of PGP with us"

[steveklabnik]

First run at the blog post.

@dmdj03 , I'm not sure what to use for a header image, thoughts?

[jkwade]

Looks pretty good to me, @steveklabnik. Although, I usually describe PCI and security as table stakes in payments, not something of 'paramount importance.' Of course it is that, but you can't even step into the arena without it. I think conveying that idea is important.

[steveklabnik]

Makes sense. Hm.

[steveklabnik]

Okay! Let's do this!