Provide a way to quickly open all the links without clicking

Hi @smithbr, I really liked your list. I wanted a way to quickly open up all the links to visually compare which reader I wanted - since visuals are important to me.

Opening up all the links in an easy way was useful to me. If you think others might find it useful, please merge into your repo.

Thanks!

The command to run is:

./openall.sh

Then it will open up the links from the README in your default browser. Tested only on a Mac.