If you want to make use of the subscriber box on your Twitter account, keep reading.
This connection is done through Zapier. Now, this was previously available and working fine until Revue removed the ability to connect via API.
The twitter form is at the top of your profile and only takes 2 clicks to get someone on your email list.
You can use the Zap I've created to connect Revue to your Ghost Blog.
https://zapier.com/shared/09ad2140f35be49ebc816abe0f16e0e66aa1f1c6
Before you can use the Zap, you will have to request the API key from Revue by filling in a form you can find in the integrations page.