The last 2 emails I've mentioned this deal. 

If you'll submit tags on 5 podcast episodes or write show notes for 3 episodes that don't have them, then I'll give you one hour of 1-on-1 coaching.

The last email detailed how to submit a pull request with the changes you're submitting in it. 

The email beforehand went into why I'm making the switch.

If we've given to you and you'd like to give back, submit a pull request fixing a typo or something.

Thanks,
Chuck