Generate newsletters (and insta schedules?) from the website

[ericthelemur]

The site already renders newsletters obviously, but it would be helpful if it could generate a newsletter template from a week's events and generate an email suitable version from the rendered page.

Also similar for events, we have the page to lay them out like the posts already, it only needs a page per week to add the header and footer from the post.

[ericthelemur]

@Mole1424 How soonTM is your GitHub stuff, otherwise I might pick up some of this soon