Add an explicit agreement to receive email to account creation page

[pdpinch]

As a marketer, I want to be sure that users who create accounts on mitxonline have opted in to receiving emails.

Agreeing to the terms of service isn't sufficient. We need an explicit agreement to receive email communications.

Designs and Mockups

Acceptance Criteria:

• Change the account creation text to "By creating an account I confirm that I would like to receive email from MIT and learn about online courses and programs. I also understand and agree to the Terms of Service and Privacy Policy."

[pdpinch]

Marketing is checking with legal to determine if this is necessary for GDPR compliance.