Feature: Generate a list of links to notebook contents

[jakewvincent]

Discussed in #159

^{Originally posted by octvs June 6, 2023}
Hey there,
Is there a way to create links to all other (probable) note files in child directories using Mkdnflow. There was a :VimwikiGenerateLinks cmd in vimwiki, which accomplished most of what I'm looking for. Bonus if it can turn sub-dirs to headers but I'm not sure if that is feasible since the depth of the files can be arbitrary.
At the end it will create a unordered index file.