Simple example of using npm to install DataTables Buttons Excel Styles

It's a very, very basic webpack development setup.

To use this:

1. git clone https://github.com/pjjonesnz/example-npm-install-datatables-excel-styles.git
2. cd example-npm-install-datatables-excel-styles
3. npm install
4. npm start
5. browse to localhost:5000 (or whatever port it starts on - shown in the terminal output)
6. Click on the Excel button to try it out
7. View the files in src/