What problem does this address?

The current top-level page for the Block Editor Handbook is geared towards the post editor being the primary Gutenberg tool, with the upcoming release of WP 5.9 the Block Editor Handbook covers many topics beyond just the post editor.

What is your proposed solution?

I'm open to suggestions on what to include. There are a lot of topics covered in the handbook, from building blocks to global styles, and block themes.

A couple of suggestions for the page, but welcome your thoughts:

• Update the lead image - The current image was used to highlight sections in the post editor, it is not really feasible to try to cover all the topics the handbook now covers. So, we probably want something more aspirational, open to suggestions.

• Review and organize the content - The main focus of the handbook previously was on creating blocks, but with WP 5.9 there are block themes, settings, styles, and templates that will need prominence. How best do we guide the developers?