Use GitHub for file hosting and indexing

1. Fork the repo
2. Put files in files
3. Create corresponding entries in _data/gitCloud.yml
4. Push to a GitHub repo under the branch gh-pages

Parse all entries within the <div> with id = file-index

This configuration file is an index for the files you wish to serve.

- href: files/cat.jpg
  name: some cat

- href: files/helloWorld.py
  name: helloWorld