gitbook-plugin-expandable-chapters

This plugin adds an icon to each chapter, that has a child and css states for the child list to collapse/expand ones.

How to use it?

Add it to your book.json configuration:

{
    plugins: ["expandable-chapters"]
}

Install your plugins using:

$ gitbook install

Configuration

There is no configuration needed at the moment, can be left empty.

{
	"pluginsConfig": {
		"expandable-chapters":{}
	}
}

See also

Maybe you will find https://github.com/poojan/gitbook-plugin-toggle-chapters also useful?