README.nd and config.json.example differ as to sequence of install operations

[marnanel]

README.nd says

### Running the Test Suite

1. `npm install`
2. `cp config.json.example config.json`
3. Modify `config.json` for your run (be sure to remove all comments)

config.json.example says /**

• An example local configuration for the test suite. To use:
• 1. Copy this file to one called config.json.
• 2. Modify the file and replace with appropriate values for your system.
• 3. npm install

I don't think it makes a difference, but it's inconsistent.