Technical Preview Launch

[michael]

• Migration helpers, so it's easier to rename a property and write a migration for it. something that doesn't require writing raw sql queries, but still should be able to run in one transaction
• Make the saving dialog/ui consistent/pretty
• Finish README
• Finish LICENSE
• Mobile gesture for login/edit does not work on Android Mobile gesture for login/edit does not work on Android #119
• Record some demo videos to fill the blanks on the demo page
• Start deploying the official site via fly.io, so we eat our own dogfood, and then we can replace assets easily etc. and we can remove the fixed assets from the the static/ folder
• Write all the pages we need (Imprint etc.)
• Link previews should not break when a markdown page is referenced (how to distinguish?)
• Video poster generated from video
• Sticky TOC for long documents (any way? currently we abuse Listing node as a TOC)
• Sticky menu (then we have a place for toc as well maybe?)