How makers stay productive

I've created the first version of the docs and published them using my new doc editor.

- Create newsletter
- Signup forms
- Verification Email settings
- Connect to Mailgun
- Mailgun webhooks
- Connect to AWS SES
- Connect to Sendgrid

This version of these docs mostly focuses on the audience side and some simple explaining of the fields you need to setup.

I'll update and add more around these docs as I go forward.