The import from and export to markdown is considered lossy, but we don't know what is lost in either direction.

Converting from BlockNote JSON to Y.doc binary should be lossless, but converting from Y.doc to BlockNote JSON will lose the editing history.

To check what will be lost and have data to confirm whether it's acceptable, build a proof of concept and run it with test data. Begin of the insertion

## Tasks

1. Build proof of concept for export from Y.doc to markdown

2. Build proof of concept for import from markdown to Y.doc

3. Build test data

1. export test data into markdown

2. import results from a into Y.docEnd of the insertion