add node modules to repo

node_modules/fs-extra/docs/remove-sync.md

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+# removeSync(path)
+
+Removes a file or directory. The directory can have contents. Like `rm -rf`.
+
+- `path` `<String>`
+
+## Example:
+
+```js
+const fs = require('fs-extra')
+
+// remove file
+fs.removeSync('/tmp/myfile')
+
+fs.removeSync('/home/jprichardson') // I just deleted my entire HOME directory.
+```