Link to Document Index
It's up in the crumbs bar now - hidden for pages of the document index itself. I always hated it when it appeared above the content.
Use of tags
Color-coding makes the status of the current document faster comprehensible. You don't have to read the (error) messages anymore to understand it. Just like Maniphest / Differential, a fast skim is enough to know the current state.
I'm using the property list so information like Last updated on ... and This doc belongs to project ... do not get mashed into the content text. Less confusion.
I also took the freedom to add the description - if it's available. So you can do sth like Still under construction or Will fix up this mess. Or write a funny introduction.