WHY GUTENBERG MATTERS AT ALL
First, before going into any details on this update, we’d like to cover why these updates matter, and what is Gutenberg anyway.
In short, the new way of editing using online editors (inside CMSs, like WordPress) is to use “Block” technology. For now, let’s just say that blocks make life easier.
HERE is a really cool demo of Gutenberg: https://wordpress.org/gutenberg, which you can click around in and try it out yourself.
Please read on