Add subscription nudge to the rotating banner

[MyfanwyNixon]

I can see this is updated at https://www.theyworkforyou.com/admin/banner.php?editorial_option=banner but am too chicken to try editing JSON.

Can we have the message:

Get all the news on TheyWorkForYou and other projects from mySociety. Subscribe to our updates.

[lucascumsille]

Note to self:

• [ ] Ask Alex about how the rotation system works. Does it pick randomly if I omit the end time?

[ajparsons]

Yes - there's a weight that adjusts that. We do currently have a newsletter specific sign up already in the loop though, but can resolve that later.

[lucascumsille]

Thanks @ajparsons I just updated the Json file. @MyfanwyNixon, here is the result:

[MyfanwyNixon]

Looks great, thanks!