Clarification Needed: Why Specify `wiki_folder` and what are the implications?

[chaojian-zhang]

Hi, thanks for the great template! Works like a charm. This is not an issue with the theme but more like a documentation clarification.

In the config file there is this line:

# (string) folder where wiki pages are stored, it's needed for tool buttons
wiki_folder: "wiki"

I wonder what does "tool buttons" refer to? Is this referring to the download buttons from the sidebar?

On the other hand, if I put entries inside folders other than the specified wiki_folder, they can render fine and even Edit buttons work fine on those files - so I wonder why is it necessary to specify wiki_folder and what are the implications to the files that's put outside those folders?

For instance, from the basic skeleton, it's apparent the _posts are not placed inside wiki folder - what does it mean?