Since it declares the interpreter at the beginning (https://github.com/globalcitizen/taoup/blob/master/taoup#L1), you should just be able to chmod +x it and run it as ./taoup

Since it's an executable like that, this would also allow you to put it in /usr/local/bin (or wherever you keep bins) and call it from anywhere in your shell with 'taoup'

(my technical wording may be off)