folder collapse

[laoshaw]

this is a great plugin, just one more addition will make it perfect.

mkdocs honor sub-folders under docs/ and will generate all html pages for markdown files under them without modifying mkdocs.yml to add the pages manually, which is super handy when you have a large set of markdown files in a hierarchy layout.

this plugin can collapse for each page with its heading sections, but not for all the pages under the folder name when you click on the folder name.

say, i have:

docs/folder1/file1.md
docs/folder1/file2.md

if I can click on "folder1" it will collapse that will be great.