As a Gutenberg contributor, it would be easier to suggest edits to the handbook if it was editable on GitHub.
It is all editable here — it syncs every 15 minutes or so, I believe.
@danielbachhuber The handbook is generated based on the docs folder of the repository and the manifest file https://github.com/WordPress/gutenberg/blob/master/docs/manifest.json
This is already possible then.
The handbook is generated based on the docs folder of the repository and the manifest file https://github.com/WordPress/gutenberg/blob/master/docs/manifest.json
Oh, great. Can we include some call to action in the handbook itself?
For reference, WP-CLI has this:

Yes, sounds like a good idea. cc @pento
Fixed in WordPress/gutenberg-theme#23.