Key "dfs.namenode.edits.dir" is the config for edits location and it uses "dfs.namenode.name.dir" as its default value. I think the docs holds good as it is, and we shouldn't add in about edits to make it ambiguous.
An improvement we can do, however, is to make the right key for edits more visible. But I have not seen a great need to change this location among several users. I think this is fine as is. But please put forth your POV too, as what lead to requiring moving the edits dir?
If you agree, we can resolve this one out