nm-prune 

> Prune unneeded files (.md, .td, etc..) from node_modules folder. Super handy
> for Electron and AWS Lambda.

``
$ npm install --global nm-prune
`

Customizing files and folders to be pruned

To see the files/folders that nm-prune will delete then have a look at
default-prune.json.

To provide your own prune list then simply create a prune.json in your
package's root directory (alongside package.json) and nm-prune will use that
instead.

Skip confirmation

If you want nm-prune to run without asking for confirmation then you can run
nm-prune --force.

Discard license files

By default nm-prune v4+ does not discard license files because that would
violate the terms of most licenses. If you wish to prune them anyway then you
can run the command nm-prune --prune-license`.

License

MIT © DaveJ