Create Newsletter and add a link to it in the footer

[paul-rinaldi]

Is your feature request related to a problem? Please describe.
We need to update the public and stakeholders as new features are created and we do more things in the community: a newsletter is a great avenue for that as many service providers and people who are interested in reentry use their email primarily over social networks.

Describe the solution you'd like

1. Create a mailchimp or alternative newsletter service, not sure how to do this collaboratively, but I @paul-rinaldi needs admin rights or close to that on there
2. Replace this line below in footer/index.js with the statement Subscribe to our Newsletter for Updates! with a link to the mailchimp sign up/subscribe link (a/href).
   

Describe alternatives you've considered
I haven't considered an alternatives but maybe you know of great ways to communicate about community project / civic tech progress to the community using it? Twitter? @Aycrazy

Additional context
See above. I (@paul-rinaldi ) may ask the MSOE honors freshman class to do this.